Home / 25,691.83-38,559.60-10,120.39

Finding the Fourth Proportional to 25,691.83, 38,559.60 and 10,120.39

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Solution

The fourth proportional to 25,691.83, 38,559.60 and 10,120.39 is: 15,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.83 : 38,559.60 = 10,120.39 : x
  2. Step 2: Convert to fraction form
    25,691.83/38,559.60 = 10,120.39/x
  3. Step 3: Cross multiply
    25,691.83x = 38,559.60 × 10,120.39
  4. Step 4: Simplify right side
    25,691.83x = 390,238,190.24
  5. Step 5: Solve for x
    x = 390,238,190.24/25,691.83
  6. Step 6: Final answer
    x = 15,189.19

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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.