Home / 25,478.52-38,221.20-7,950.12

Finding the Fourth Proportional to 25,478.52, 38,221.20 and 7,950.12

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Solution

The fourth proportional to 25,478.52, 38,221.20 and 7,950.12 is: 11,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.52 : 38,221.20 = 7,950.12 : x
  2. Step 2: Convert to fraction form
    25,478.52/38,221.20 = 7,950.12/x
  3. Step 3: Cross multiply
    25,478.52x = 38,221.20 × 7,950.12
  4. Step 4: Simplify right side
    25,478.52x = 303,863,126.54
  5. Step 5: Solve for x
    x = 303,863,126.54/25,478.52
  6. Step 6: Final answer
    x = 11,926.25

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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.