Home / 42,209.76-63,331.60-15,921.92

Finding the Fourth Proportional to 42,209.76, 63,331.60 and 15,921.92

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Solution

The fourth proportional to 42,209.76, 63,331.60 and 15,921.92 is: 23,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,209.76 : 63,331.60 = 15,921.92 : x
  2. Step 2: Convert to fraction form
    42,209.76/63,331.60 = 15,921.92/x
  3. Step 3: Cross multiply
    42,209.76x = 63,331.60 × 15,921.92
  4. Step 4: Simplify right side
    42,209.76x = 1,008,360,668.67
  5. Step 5: Solve for x
    x = 1,008,360,668.67/42,209.76
  6. Step 6: Final answer
    x = 23,889.28

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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.