Home / 34,616.97-47,778.26-20,278.35

Finding the Fourth Proportional to 34,616.97, 47,778.26 and 20,278.35

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Solution

The fourth proportional to 34,616.97, 47,778.26 and 20,278.35 is: 27,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,616.97 : 47,778.26 = 20,278.35 : x
  2. Step 2: Convert to fraction form
    34,616.97/47,778.26 = 20,278.35/x
  3. Step 3: Cross multiply
    34,616.97x = 47,778.26 × 20,278.35
  4. Step 4: Simplify right side
    34,616.97x = 968,864,177.28
  5. Step 5: Solve for x
    x = 968,864,177.28/34,616.97
  6. Step 6: Final answer
    x = 27,988.13

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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.