Home / 34,884.68-48,139.85-19,778.78

Finding the Fourth Proportional to 34,884.68, 48,139.85 and 19,778.78

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Solution

The fourth proportional to 34,884.68, 48,139.85 and 19,778.78 is: 27,294.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,884.68 : 48,139.85 = 19,778.78 : x
  2. Step 2: Convert to fraction form
    34,884.68/48,139.85 = 19,778.78/x
  3. Step 3: Cross multiply
    34,884.68x = 48,139.85 × 19,778.78
  4. Step 4: Simplify right side
    34,884.68x = 952,147,672.18
  5. Step 5: Solve for x
    x = 952,147,672.18/34,884.68
  6. Step 6: Final answer
    x = 27,294.15

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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.