Home / 25,811.70-38,717.55-16,998.90

Finding the Fourth Proportional to 25,811.70, 38,717.55 and 16,998.90

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Solution

The fourth proportional to 25,811.70, 38,717.55 and 16,998.90 is: 25,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.70 : 38,717.55 = 16,998.90 : x
  2. Step 2: Convert to fraction form
    25,811.70/38,717.55 = 16,998.90/x
  3. Step 3: Cross multiply
    25,811.70x = 38,717.55 × 16,998.90
  4. Step 4: Simplify right side
    25,811.70x = 658,155,760.70
  5. Step 5: Solve for x
    x = 658,155,760.70/25,811.70
  6. Step 6: Final answer
    x = 25,498.35

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Similar ratio
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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.