Home / 42,001.24-62,979.90-12,415.08

Finding the Fourth Proportional to 42,001.24, 62,979.90 and 12,415.08

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Solution

The fourth proportional to 42,001.24, 62,979.90 and 12,415.08 is: 18,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001.24 : 62,979.90 = 12,415.08 : x
  2. Step 2: Convert to fraction form
    42,001.24/62,979.90 = 12,415.08/x
  3. Step 3: Cross multiply
    42,001.24x = 62,979.90 × 12,415.08
  4. Step 4: Simplify right side
    42,001.24x = 781,900,496.89
  5. Step 5: Solve for x
    x = 781,900,496.89/42,001.24
  6. Step 6: Final answer
    x = 18,616.13

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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.