Home / 42,007.16-63,010.53-12,425.15

Finding the Fourth Proportional to 42,007.16, 63,010.53 and 12,425.15

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Solution

The fourth proportional to 42,007.16, 63,010.53 and 12,425.15 is: 18,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,007.16 : 63,010.53 = 12,425.15 : x
  2. Step 2: Convert to fraction form
    42,007.16/63,010.53 = 12,425.15/x
  3. Step 3: Cross multiply
    42,007.16x = 63,010.53 × 12,425.15
  4. Step 4: Simplify right side
    42,007.16x = 782,914,971.78
  5. Step 5: Solve for x
    x = 782,914,971.78/42,007.16
  6. Step 6: Final answer
    x = 18,637.66

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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.