Home / 42,449.76-63,577.67-20,278.82

Finding the Fourth Proportional to 42,449.76, 63,577.67 and 20,278.82

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Solution

The fourth proportional to 42,449.76, 63,577.67 and 20,278.82 is: 30,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,449.76 : 63,577.67 = 20,278.82 : x
  2. Step 2: Convert to fraction form
    42,449.76/63,577.67 = 20,278.82/x
  3. Step 3: Cross multiply
    42,449.76x = 63,577.67 × 20,278.82
  4. Step 4: Simplify right side
    42,449.76x = 1,289,280,125.95
  5. Step 5: Solve for x
    x = 1,289,280,125.95/42,449.76
  6. Step 6: Final answer
    x = 30,371.91

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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.