Home / 39,987.92-59,999.16-21,532.88

Finding the Fourth Proportional to 39,987.92, 59,999.16 and 21,532.88

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Solution

The fourth proportional to 39,987.92, 59,999.16 and 21,532.88 is: 32,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.92 : 59,999.16 = 21,532.88 : x
  2. Step 2: Convert to fraction form
    39,987.92/59,999.16 = 21,532.88/x
  3. Step 3: Cross multiply
    39,987.92x = 59,999.16 × 21,532.88
  4. Step 4: Simplify right side
    39,987.92x = 1,291,954,712.38
  5. Step 5: Solve for x
    x = 1,291,954,712.38/39,987.92
  6. Step 6: Final answer
    x = 32,308.63

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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.