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Finding the Fourth Proportional to 25,886.88, 38,830.32 and 8,359.29

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Solution

The fourth proportional to 25,886.88, 38,830.32 and 8,359.29 is: 12,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.88 : 38,830.32 = 8,359.29 : x
  2. Step 2: Convert to fraction form
    25,886.88/38,830.32 = 8,359.29/x
  3. Step 3: Cross multiply
    25,886.88x = 38,830.32 × 8,359.29
  4. Step 4: Simplify right side
    25,886.88x = 324,593,711.52
  5. Step 5: Solve for x
    x = 324,593,711.52/25,886.88
  6. Step 6: Final answer
    x = 12,538.93

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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.