Home / 24,878.40-34,331.85-13,547.78

Finding the Fourth Proportional to 24,878.40, 34,331.85 and 13,547.78

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Solution

The fourth proportional to 24,878.40, 34,331.85 and 13,547.78 is: 18,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,878.40 : 34,331.85 = 13,547.78 : x
  2. Step 2: Convert to fraction form
    24,878.40/34,331.85 = 13,547.78/x
  3. Step 3: Cross multiply
    24,878.40x = 34,331.85 × 13,547.78
  4. Step 4: Simplify right side
    24,878.40x = 465,120,350.79
  5. Step 5: Solve for x
    x = 465,120,350.79/24,878.40
  6. Step 6: Final answer
    x = 18,695.75

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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.