Home / 21,387,750.20-32,081,625.30-20,392,422.20

Finding the Fourth Proportional to 21,387,750.20, 32,081,625.30 and 20,392,422.20

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Solution

The fourth proportional to 21,387,750.20, 32,081,625.30 and 20,392,422.20 is: 30,588,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,750.20 : 32,081,625.30 = 20,392,422.20 : x
  2. Step 2: Convert to fraction form
    21,387,750.20/32,081,625.30 = 20,392,422.20/x
  3. Step 3: Cross multiply
    21,387,750.20x = 32,081,625.30 × 20,392,422.20
  4. Step 4: Simplify right side
    21,387,750.20x = 654,222,047,979,801.62
  5. Step 5: Solve for x
    x = 654,222,047,979,801.62/21,387,750.20
  6. Step 6: Final answer
    x = 30,588,633.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.