Home / 25,789.82-38,686.70-10,998.80

Finding the Fourth Proportional to 25,789.82, 38,686.70 and 10,998.80

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Solution

The fourth proportional to 25,789.82, 38,686.70 and 10,998.80 is: 16,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789.82 : 38,686.70 = 10,998.80 : x
  2. Step 2: Convert to fraction form
    25,789.82/38,686.70 = 10,998.80/x
  3. Step 3: Cross multiply
    25,789.82x = 38,686.70 × 10,998.80
  4. Step 4: Simplify right side
    25,789.82x = 425,507,275.96
  5. Step 5: Solve for x
    x = 425,507,275.96/25,789.82
  6. Step 6: Final answer
    x = 16,499.04

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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.