Home / 42,480.08-63,732.92-14,778

Finding the Fourth Proportional to 42,480.08, 63,732.92 and 14,778

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Solution

The fourth proportional to 42,480.08, 63,732.92 and 14,778 is: 22,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,480.08 : 63,732.92 = 14,778 : x
  2. Step 2: Convert to fraction form
    42,480.08/63,732.92 = 14,778/x
  3. Step 3: Cross multiply
    42,480.08x = 63,732.92 × 14,778
  4. Step 4: Simplify right side
    42,480.08x = 941,845,091.76
  5. Step 5: Solve for x
    x = 941,845,091.76/42,480.08
  6. Step 6: Final answer
    x = 22,171.45

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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.