Home / 39,991.19-60,023.15-21,287.04

Finding the Fourth Proportional to 39,991.19, 60,023.15 and 21,287.04

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Solution

The fourth proportional to 39,991.19, 60,023.15 and 21,287.04 is: 31,949.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,991.19 : 60,023.15 = 21,287.04 : x
  2. Step 2: Convert to fraction form
    39,991.19/60,023.15 = 21,287.04/x
  3. Step 3: Cross multiply
    39,991.19x = 60,023.15 × 21,287.04
  4. Step 4: Simplify right side
    39,991.19x = 1,277,715,088.54
  5. Step 5: Solve for x
    x = 1,277,715,088.54/39,991.19
  6. Step 6: Final answer
    x = 31,949.92

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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.