Home / 42,487.56-63,732.66-14,407.20

Finding the Fourth Proportional to 42,487.56, 63,732.66 and 14,407.20

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Solution

The fourth proportional to 42,487.56, 63,732.66 and 14,407.20 is: 21,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487.56 : 63,732.66 = 14,407.20 : x
  2. Step 2: Convert to fraction form
    42,487.56/63,732.66 = 14,407.20/x
  3. Step 3: Cross multiply
    42,487.56x = 63,732.66 × 14,407.20
  4. Step 4: Simplify right side
    42,487.56x = 918,209,179.15
  5. Step 5: Solve for x
    x = 918,209,179.15/42,487.56
  6. Step 6: Final answer
    x = 21,611.25

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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.