Home / 25,915.38-38,872.61-8,385.22

Finding the Fourth Proportional to 25,915.38, 38,872.61 and 8,385.22

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Solution

The fourth proportional to 25,915.38, 38,872.61 and 8,385.22 is: 12,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.38 : 38,872.61 = 8,385.22 : x
  2. Step 2: Convert to fraction form
    25,915.38/38,872.61 = 8,385.22/x
  3. Step 3: Cross multiply
    25,915.38x = 38,872.61 × 8,385.22
  4. Step 4: Simplify right side
    25,915.38x = 325,955,424.93
  5. Step 5: Solve for x
    x = 325,955,424.93/25,915.38
  6. Step 6: Final answer
    x = 12,577.68

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1.5x scale

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.