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Finding the Fourth Proportional to 25,808.87, 35,618.60 and 15,737.87

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Solution

The fourth proportional to 25,808.87, 35,618.60 and 15,737.87 is: 21,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,808.87 : 35,618.60 = 15,737.87 : x
  2. Step 2: Convert to fraction form
    25,808.87/35,618.60 = 15,737.87/x
  3. Step 3: Cross multiply
    25,808.87x = 35,618.60 × 15,737.87
  4. Step 4: Simplify right side
    25,808.87x = 560,560,817.69
  5. Step 5: Solve for x
    x = 560,560,817.69/25,808.87
  6. Step 6: Final answer
    x = 21,719.70

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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.