Home / 31,778.59-47,680.43-12,062.38

Finding the Fourth Proportional to 31,778.59, 47,680.43 and 12,062.38

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Solution

The fourth proportional to 31,778.59, 47,680.43 and 12,062.38 is: 18,098.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.59 : 47,680.43 = 12,062.38 : x
  2. Step 2: Convert to fraction form
    31,778.59/47,680.43 = 12,062.38/x
  3. Step 3: Cross multiply
    31,778.59x = 47,680.43 × 12,062.38
  4. Step 4: Simplify right side
    31,778.59x = 575,139,226.82
  5. Step 5: Solve for x
    x = 575,139,226.82/31,778.59
  6. Step 6: Final answer
    x = 18,098.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.