Home / 34,772.14-47,979.13-20,434.30

Finding the Fourth Proportional to 34,772.14, 47,979.13 and 20,434.30

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Solution

The fourth proportional to 34,772.14, 47,979.13 and 20,434.30 is: 28,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,772.14 : 47,979.13 = 20,434.30 : x
  2. Step 2: Convert to fraction form
    34,772.14/47,979.13 = 20,434.30/x
  3. Step 3: Cross multiply
    34,772.14x = 47,979.13 × 20,434.30
  4. Step 4: Simplify right side
    34,772.14x = 980,419,936.16
  5. Step 5: Solve for x
    x = 980,419,936.16/34,772.14
  6. Step 6: Final answer
    x = 28,195.56

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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.