Home / 34,272.38-47,293.28-20,841.78

Finding the Fourth Proportional to 34,272.38, 47,293.28 and 20,841.78

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Solution

The fourth proportional to 34,272.38, 47,293.28 and 20,841.78 is: 28,760.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,272.38 : 47,293.28 = 20,841.78 : x
  2. Step 2: Convert to fraction form
    34,272.38/47,293.28 = 20,841.78/x
  3. Step 3: Cross multiply
    34,272.38x = 47,293.28 × 20,841.78
  4. Step 4: Simplify right side
    34,272.38x = 985,676,137.24
  5. Step 5: Solve for x
    x = 985,676,137.24/34,272.38
  6. Step 6: Final answer
    x = 28,760.07

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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.