Home / 34,400.61-47,447.97-20,972.43

Finding the Fourth Proportional to 34,400.61, 47,447.97 and 20,972.43

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Solution

The fourth proportional to 34,400.61, 47,447.97 and 20,972.43 is: 28,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,400.61 : 47,447.97 = 20,972.43 : x
  2. Step 2: Convert to fraction form
    34,400.61/47,447.97 = 20,972.43/x
  3. Step 3: Cross multiply
    34,400.61x = 47,447.97 × 20,972.43
  4. Step 4: Simplify right side
    34,400.61x = 995,099,229.47
  5. Step 5: Solve for x
    x = 995,099,229.47/34,400.61
  6. Step 6: Final answer
    x = 28,926.79

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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.