Home / 40,818.48-61,220.72-11,229.76

Finding the Fourth Proportional to 40,818.48, 61,220.72 and 11,229.76

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Solution

The fourth proportional to 40,818.48, 61,220.72 and 11,229.76 is: 16,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,818.48 : 61,220.72 = 11,229.76 : x
  2. Step 2: Convert to fraction form
    40,818.48/61,220.72 = 11,229.76/x
  3. Step 3: Cross multiply
    40,818.48x = 61,220.72 × 11,229.76
  4. Step 4: Simplify right side
    40,818.48x = 687,493,992.63
  5. Step 5: Solve for x
    x = 687,493,992.63/40,818.48
  6. Step 6: Final answer
    x = 16,842.71

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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.