Home / 25,531.20-38,302.56-8,890.56

Finding the Fourth Proportional to 25,531.20, 38,302.56 and 8,890.56

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Solution

The fourth proportional to 25,531.20, 38,302.56 and 8,890.56 is: 13,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.20 : 38,302.56 = 8,890.56 : x
  2. Step 2: Convert to fraction form
    25,531.20/38,302.56 = 8,890.56/x
  3. Step 3: Cross multiply
    25,531.20x = 38,302.56 × 8,890.56
  4. Step 4: Simplify right side
    25,531.20x = 340,531,207.83
  5. Step 5: Solve for x
    x = 340,531,207.83/25,531.20
  6. Step 6: Final answer
    x = 13,337.85

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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.