Home / 31,194.18-43,049.71-20,576.29

Finding the Fourth Proportional to 31,194.18, 43,049.71 and 20,576.29

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Solution

The fourth proportional to 31,194.18, 43,049.71 and 20,576.29 is: 28,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,194.18 : 43,049.71 = 20,576.29 : x
  2. Step 2: Convert to fraction form
    31,194.18/43,049.71 = 20,576.29/x
  3. Step 3: Cross multiply
    31,194.18x = 43,049.71 × 20,576.29
  4. Step 4: Simplify right side
    31,194.18x = 885,803,317.38
  5. Step 5: Solve for x
    x = 885,803,317.38/31,194.18
  6. Step 6: Final answer
    x = 28,396.43

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Double scale
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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.