Home / 25,447.39-38,139.68-18,451.42

Finding the Fourth Proportional to 25,447.39, 38,139.68 and 18,451.42

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Solution

The fourth proportional to 25,447.39, 38,139.68 and 18,451.42 is: 27,654.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,447.39 : 38,139.68 = 18,451.42 : x
  2. Step 2: Convert to fraction form
    25,447.39/38,139.68 = 18,451.42/x
  3. Step 3: Cross multiply
    25,447.39x = 38,139.68 × 18,451.42
  4. Step 4: Simplify right side
    25,447.39x = 703,731,205.12
  5. Step 5: Solve for x
    x = 703,731,205.12/25,447.39
  6. Step 6: Final answer
    x = 27,654.36

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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.