Home / 39,763.27-54,872.87-21,613.60

Finding the Fourth Proportional to 39,763.27, 54,872.87 and 21,613.60

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Solution

The fourth proportional to 39,763.27, 54,872.87 and 21,613.60 is: 29,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.27 : 54,872.87 = 21,613.60 : x
  2. Step 2: Convert to fraction form
    39,763.27/54,872.87 = 21,613.60/x
  3. Step 3: Cross multiply
    39,763.27x = 54,872.87 × 21,613.60
  4. Step 4: Simplify right side
    39,763.27x = 1,186,000,508.81
  5. Step 5: Solve for x
    x = 1,186,000,508.81/39,763.27
  6. Step 6: Final answer
    x = 29,826.53

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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.