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Finding the Fourth Proportional to 36,037.89, 49,780.31 and 28,990.89

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Solution

The fourth proportional to 36,037.89, 49,780.31 and 28,990.89 is: 40,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,037.89 : 49,780.31 = 28,990.89 : x
  2. Step 2: Convert to fraction form
    36,037.89/49,780.31 = 28,990.89/x
  3. Step 3: Cross multiply
    36,037.89x = 49,780.31 × 28,990.89
  4. Step 4: Simplify right side
    36,037.89x = 1,443,175,346.42
  5. Step 5: Solve for x
    x = 1,443,175,346.42/36,037.89
  6. Step 6: Final answer
    x = 40,046.06

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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.