Home / 39,690.18-59,493.87-13,385.88

Finding the Fourth Proportional to 39,690.18, 59,493.87 and 13,385.88

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Solution

The fourth proportional to 39,690.18, 59,493.87 and 13,385.88 is: 20,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,690.18 : 59,493.87 = 13,385.88 : x
  2. Step 2: Convert to fraction form
    39,690.18/59,493.87 = 13,385.88/x
  3. Step 3: Cross multiply
    39,690.18x = 59,493.87 × 13,385.88
  4. Step 4: Simplify right side
    39,690.18x = 796,377,804.56
  5. Step 5: Solve for x
    x = 796,377,804.56/39,690.18
  6. Step 6: Final answer
    x = 20,064.86

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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.