Home / 42,381.54-63,577.89-15,723.90

Finding the Fourth Proportional to 42,381.54, 63,577.89 and 15,723.90

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Solution

The fourth proportional to 42,381.54, 63,577.89 and 15,723.90 is: 23,587.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,381.54 : 63,577.89 = 15,723.90 : x
  2. Step 2: Convert to fraction form
    42,381.54/63,577.89 = 15,723.90/x
  3. Step 3: Cross multiply
    42,381.54x = 63,577.89 × 15,723.90
  4. Step 4: Simplify right side
    42,381.54x = 999,692,384.57
  5. Step 5: Solve for x
    x = 999,692,384.57/42,381.54
  6. Step 6: Final answer
    x = 23,587.92

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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.