Home / 21,387,763.20-32,081,644.80-20,392,435.20

Finding the Fourth Proportional to 21,387,763.20, 32,081,644.80 and 20,392,435.20

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Solution

The fourth proportional to 21,387,763.20, 32,081,644.80 and 20,392,435.20 is: 30,588,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,763.20 : 32,081,644.80 = 20,392,435.20 : x
  2. Step 2: Convert to fraction form
    21,387,763.20/32,081,644.80 = 20,392,435.20/x
  3. Step 3: Cross multiply
    21,387,763.20x = 32,081,644.80 × 20,392,435.20
  4. Step 4: Simplify right side
    21,387,763.20x = 654,222,862,693,417
  5. Step 5: Solve for x
    x = 654,222,862,693,417/21,387,763.20
  6. Step 6: Final answer
    x = 30,588,652.80

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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.