Home / 24,858.78-34,305.12-13,680.78

Finding the Fourth Proportional to 24,858.78, 34,305.12 and 13,680.78

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Solution

The fourth proportional to 24,858.78, 34,305.12 and 13,680.78 is: 18,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,858.78 : 34,305.12 = 13,680.78 : x
  2. Step 2: Convert to fraction form
    24,858.78/34,305.12 = 13,680.78/x
  3. Step 3: Cross multiply
    24,858.78x = 34,305.12 × 13,680.78
  4. Step 4: Simplify right side
    24,858.78x = 469,320,799.59
  5. Step 5: Solve for x
    x = 469,320,799.59/24,858.78
  6. Step 6: Final answer
    x = 18,879.48

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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.