Home / 42,258.29-63,419.56-15,629.47

Finding the Fourth Proportional to 42,258.29, 63,419.56 and 15,629.47

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Solution

The fourth proportional to 42,258.29, 63,419.56 and 15,629.47 is: 23,456.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,258.29 : 63,419.56 = 15,629.47 : x
  2. Step 2: Convert to fraction form
    42,258.29/63,419.56 = 15,629.47/x
  3. Step 3: Cross multiply
    42,258.29x = 63,419.56 × 15,629.47
  4. Step 4: Simplify right side
    42,258.29x = 991,214,013.64
  5. Step 5: Solve for x
    x = 991,214,013.64/42,258.29
  6. Step 6: Final answer
    x = 23,456.09

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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.