Home / 42,273.97-63,438.63-15,978.73

Finding the Fourth Proportional to 42,273.97, 63,438.63 and 15,978.73

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Solution

The fourth proportional to 42,273.97, 63,438.63 and 15,978.73 is: 23,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,273.97 : 63,438.63 = 15,978.73 : x
  2. Step 2: Convert to fraction form
    42,273.97/63,438.63 = 15,978.73/x
  3. Step 3: Cross multiply
    42,273.97x = 63,438.63 × 15,978.73
  4. Step 4: Simplify right side
    42,273.97x = 1,013,668,740.34
  5. Step 5: Solve for x
    x = 1,013,668,740.34/42,273.97
  6. Step 6: Final answer
    x = 23,978.56

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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.