Home / 42,269.78-63,432.36-15,974.53

Finding the Fourth Proportional to 42,269.78, 63,432.36 and 15,974.53

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Solution

The fourth proportional to 42,269.78, 63,432.36 and 15,974.53 is: 23,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,269.78 : 63,432.36 = 15,974.53 : x
  2. Step 2: Convert to fraction form
    42,269.78/63,432.36 = 15,974.53/x
  3. Step 3: Cross multiply
    42,269.78x = 63,432.36 × 15,974.53
  4. Step 4: Simplify right side
    42,269.78x = 1,013,301,979.21
  5. Step 5: Solve for x
    x = 1,013,301,979.21/42,269.78
  6. Step 6: Final answer
    x = 23,972.25

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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.