Home / 42,418.54-63,623.68-21,350.18

Finding the Fourth Proportional to 42,418.54, 63,623.68 and 21,350.18

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Solution

The fourth proportional to 42,418.54, 63,623.68 and 21,350.18 is: 32,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.54 : 63,623.68 = 21,350.18 : x
  2. Step 2: Convert to fraction form
    42,418.54/63,623.68 = 21,350.18/x
  3. Step 3: Cross multiply
    42,418.54x = 63,623.68 × 21,350.18
  4. Step 4: Simplify right side
    42,418.54x = 1,358,377,125.95
  5. Step 5: Solve for x
    x = 1,358,377,125.95/42,418.54
  6. Step 6: Final answer
    x = 32,023.20

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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.