Home / 34,170.69-47,147.52-20,741.61

Finding the Fourth Proportional to 34,170.69, 47,147.52 and 20,741.61

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Solution

The fourth proportional to 34,170.69, 47,147.52 and 20,741.61 is: 28,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,170.69 : 47,147.52 = 20,741.61 : x
  2. Step 2: Convert to fraction form
    34,170.69/47,147.52 = 20,741.61/x
  3. Step 3: Cross multiply
    34,170.69x = 47,147.52 × 20,741.61
  4. Step 4: Simplify right side
    34,170.69x = 977,915,472.31
  5. Step 5: Solve for x
    x = 977,915,472.31/34,170.69
  6. Step 6: Final answer
    x = 28,618.55

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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.