Home / 25,476.18-38,228.85-9,891.78

Finding the Fourth Proportional to 25,476.18, 38,228.85 and 9,891.78

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Solution

The fourth proportional to 25,476.18, 38,228.85 and 9,891.78 is: 14,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,476.18 : 38,228.85 = 9,891.78 : x
  2. Step 2: Convert to fraction form
    25,476.18/38,228.85 = 9,891.78/x
  3. Step 3: Cross multiply
    25,476.18x = 38,228.85 × 9,891.78
  4. Step 4: Simplify right side
    25,476.18x = 378,151,373.85
  5. Step 5: Solve for x
    x = 378,151,373.85/25,476.18
  6. Step 6: Final answer
    x = 14,843.33

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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.