Home / 34,747.38-47,933.72-21,979.05

Finding the Fourth Proportional to 34,747.38, 47,933.72 and 21,979.05

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Solution

The fourth proportional to 34,747.38, 47,933.72 and 21,979.05 is: 30,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,747.38 : 47,933.72 = 21,979.05 : x
  2. Step 2: Convert to fraction form
    34,747.38/47,933.72 = 21,979.05/x
  3. Step 3: Cross multiply
    34,747.38x = 47,933.72 × 21,979.05
  4. Step 4: Simplify right side
    34,747.38x = 1,053,537,544.97
  5. Step 5: Solve for x
    x = 1,053,537,544.97/34,747.38
  6. Step 6: Final answer
    x = 30,319.91

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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.