Home / 25,425.87-38,138.39-7,895.72

Finding the Fourth Proportional to 25,425.87, 38,138.39 and 7,895.72

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Solution

The fourth proportional to 25,425.87, 38,138.39 and 7,895.72 is: 11,843.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.87 : 38,138.39 = 7,895.72 : x
  2. Step 2: Convert to fraction form
    25,425.87/38,138.39 = 7,895.72/x
  3. Step 3: Cross multiply
    25,425.87x = 38,138.39 × 7,895.72
  4. Step 4: Simplify right side
    25,425.87x = 301,129,818.52
  5. Step 5: Solve for x
    x = 301,129,818.52/25,425.87
  6. Step 6: Final answer
    x = 11,843.44

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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.