Home / 29,801.24-41,142.88-20,739.76

Finding the Fourth Proportional to 29,801.24, 41,142.88 and 20,739.76

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Solution

The fourth proportional to 29,801.24, 41,142.88 and 20,739.76 is: 28,632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,801.24 : 41,142.88 = 20,739.76 : x
  2. Step 2: Convert to fraction form
    29,801.24/41,142.88 = 20,739.76/x
  3. Step 3: Cross multiply
    29,801.24x = 41,142.88 × 20,739.76
  4. Step 4: Simplify right side
    29,801.24x = 853,293,456.91
  5. Step 5: Solve for x
    x = 853,293,456.91/29,801.24
  6. Step 6: Final answer
    x = 28,632.82

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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.