Home / 25,925.14-38,891.49-12,778.30

Finding the Fourth Proportional to 25,925.14, 38,891.49 and 12,778.30

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Solution

The fourth proportional to 25,925.14, 38,891.49 and 12,778.30 is: 19,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925.14 : 38,891.49 = 12,778.30 : x
  2. Step 2: Convert to fraction form
    25,925.14/38,891.49 = 12,778.30/x
  3. Step 3: Cross multiply
    25,925.14x = 38,891.49 × 12,778.30
  4. Step 4: Simplify right side
    25,925.14x = 496,967,126.67
  5. Step 5: Solve for x
    x = 496,967,126.67/25,925.14
  6. Step 6: Final answer
    x = 19,169.31

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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.