Home / 42,721.30-64,093.15-16,426.90

Finding the Fourth Proportional to 42,721.30, 64,093.15 and 16,426.90

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Solution

The fourth proportional to 42,721.30, 64,093.15 and 16,426.90 is: 24,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,721.30 : 64,093.15 = 16,426.90 : x
  2. Step 2: Convert to fraction form
    42,721.30/64,093.15 = 16,426.90/x
  3. Step 3: Cross multiply
    42,721.30x = 64,093.15 × 16,426.90
  4. Step 4: Simplify right side
    42,721.30x = 1,052,851,765.74
  5. Step 5: Solve for x
    x = 1,052,851,765.74/42,721.30
  6. Step 6: Final answer
    x = 24,644.66

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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.