Home / 38,942.72-58,423.20-21,403.52

Finding the Fourth Proportional to 38,942.72, 58,423.20 and 21,403.52

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Solution

The fourth proportional to 38,942.72, 58,423.20 and 21,403.52 is: 32,110.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,942.72 : 58,423.20 = 21,403.52 : x
  2. Step 2: Convert to fraction form
    38,942.72/58,423.20 = 21,403.52/x
  3. Step 3: Cross multiply
    38,942.72x = 58,423.20 × 21,403.52
  4. Step 4: Simplify right side
    38,942.72x = 1,250,462,129.66
  5. Step 5: Solve for x
    x = 1,250,462,129.66/38,942.72
  6. Step 6: Final answer
    x = 32,110.29

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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.