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Finding the Fourth Proportional to 25,885.79, 38,821.17 and 10,087.29

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Solution

The fourth proportional to 25,885.79, 38,821.17 and 10,087.29 is: 15,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,885.79 : 38,821.17 = 10,087.29 : x
  2. Step 2: Convert to fraction form
    25,885.79/38,821.17 = 10,087.29/x
  3. Step 3: Cross multiply
    25,885.79x = 38,821.17 × 10,087.29
  4. Step 4: Simplify right side
    25,885.79x = 391,600,399.93
  5. Step 5: Solve for x
    x = 391,600,399.93/25,885.79
  6. Step 6: Final answer
    x = 15,128.01

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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.