Home / 25,371.20-38,048.40-8,728.40

Finding the Fourth Proportional to 25,371.20, 38,048.40 and 8,728.40

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Solution

The fourth proportional to 25,371.20, 38,048.40 and 8,728.40 is: 13,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,371.20 : 38,048.40 = 8,728.40 : x
  2. Step 2: Convert to fraction form
    25,371.20/38,048.40 = 8,728.40/x
  3. Step 3: Cross multiply
    25,371.20x = 38,048.40 × 8,728.40
  4. Step 4: Simplify right side
    25,371.20x = 332,101,654.56
  5. Step 5: Solve for x
    x = 332,101,654.56/25,371.20
  6. Step 6: Final answer
    x = 13,089.71

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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.