Home / 38,959.11-58,438.26-12,664.89

Finding the Fourth Proportional to 38,959.11, 58,438.26 and 12,664.89

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Solution

The fourth proportional to 38,959.11, 58,438.26 and 12,664.89 is: 18,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,959.11 : 58,438.26 = 12,664.89 : x
  2. Step 2: Convert to fraction form
    38,959.11/58,438.26 = 12,664.89/x
  3. Step 3: Cross multiply
    38,959.11x = 58,438.26 × 12,664.89
  4. Step 4: Simplify right side
    38,959.11x = 740,114,134.69
  5. Step 5: Solve for x
    x = 740,114,134.69/38,959.11
  6. Step 6: Final answer
    x = 18,997.20

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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.