Home / 37,638.83-51,926.75-21,720.20

Finding the Fourth Proportional to 37,638.83, 51,926.75 and 21,720.20

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Solution

The fourth proportional to 37,638.83, 51,926.75 and 21,720.20 is: 29,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,638.83 : 51,926.75 = 21,720.20 : x
  2. Step 2: Convert to fraction form
    37,638.83/51,926.75 = 21,720.20/x
  3. Step 3: Cross multiply
    37,638.83x = 51,926.75 × 21,720.20
  4. Step 4: Simplify right side
    37,638.83x = 1,127,859,395.35
  5. Step 5: Solve for x
    x = 1,127,859,395.35/37,638.83
  6. Step 6: Final answer
    x = 29,965.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.