Home / 25,691.40-38,475.54-13,178.52

Finding the Fourth Proportional to 25,691.40, 38,475.54 and 13,178.52

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Solution

The fourth proportional to 25,691.40, 38,475.54 and 13,178.52 is: 19,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.40 : 38,475.54 = 13,178.52 : x
  2. Step 2: Convert to fraction form
    25,691.40/38,475.54 = 13,178.52/x
  3. Step 3: Cross multiply
    25,691.40x = 38,475.54 × 13,178.52
  4. Step 4: Simplify right side
    25,691.40x = 507,050,673.40
  5. Step 5: Solve for x
    x = 507,050,673.40/25,691.40
  6. Step 6: Final answer
    x = 19,736.20

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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.