Home / 34,747.76-47,934.24-21,979.42

Finding the Fourth Proportional to 34,747.76, 47,934.24 and 21,979.42

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Solution

The fourth proportional to 34,747.76, 47,934.24 and 21,979.42 is: 30,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,747.76 : 47,934.24 = 21,979.42 : x
  2. Step 2: Convert to fraction form
    34,747.76/47,934.24 = 21,979.42/x
  3. Step 3: Cross multiply
    34,747.76x = 47,934.24 × 21,979.42
  4. Step 4: Simplify right side
    34,747.76x = 1,053,566,853.26
  5. Step 5: Solve for x
    x = 1,053,566,853.26/34,747.76
  6. Step 6: Final answer
    x = 30,320.43

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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.