Home / 25,146.57-34,702.85-13,816.78

Finding the Fourth Proportional to 25,146.57, 34,702.85 and 13,816.78

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Solution

The fourth proportional to 25,146.57, 34,702.85 and 13,816.78 is: 19,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,146.57 : 34,702.85 = 13,816.78 : x
  2. Step 2: Convert to fraction form
    25,146.57/34,702.85 = 13,816.78/x
  3. Step 3: Cross multiply
    25,146.57x = 34,702.85 × 13,816.78
  4. Step 4: Simplify right side
    25,146.57x = 479,481,591.61
  5. Step 5: Solve for x
    x = 479,481,591.61/25,146.57
  6. Step 6: Final answer
    x = 19,067.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.