Home / 38,990.14-58,493.10-12,687.82

Finding the Fourth Proportional to 38,990.14, 58,493.10 and 12,687.82

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Solution

The fourth proportional to 38,990.14, 58,493.10 and 12,687.82 is: 19,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,990.14 : 58,493.10 = 12,687.82 : x
  2. Step 2: Convert to fraction form
    38,990.14/58,493.10 = 12,687.82/x
  3. Step 3: Cross multiply
    38,990.14x = 58,493.10 × 12,687.82
  4. Step 4: Simplify right side
    38,990.14x = 742,149,924.04
  5. Step 5: Solve for x
    x = 742,149,924.04/38,990.14
  6. Step 6: Final answer
    x = 19,034.30

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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.