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Finding the Fourth Proportional to 25,874.89, 35,701.00 and 15,799.66

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Solution

The fourth proportional to 25,874.89, 35,701.00 and 15,799.66 is: 21,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,874.89 : 35,701.00 = 15,799.66 : x
  2. Step 2: Convert to fraction form
    25,874.89/35,701.00 = 15,799.66/x
  3. Step 3: Cross multiply
    25,874.89x = 35,701.00 × 15,799.66
  4. Step 4: Simplify right side
    25,874.89x = 564,063,532.91
  5. Step 5: Solve for x
    x = 564,063,532.91/25,874.89
  6. Step 6: Final answer
    x = 21,799.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.