Home / 40,979.52-61,395.12-18,811.44

Finding the Fourth Proportional to 40,979.52, 61,395.12 and 18,811.44

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Solution

The fourth proportional to 40,979.52, 61,395.12 and 18,811.44 is: 28,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,979.52 : 61,395.12 = 18,811.44 : x
  2. Step 2: Convert to fraction form
    40,979.52/61,395.12 = 18,811.44/x
  3. Step 3: Cross multiply
    40,979.52x = 61,395.12 × 18,811.44
  4. Step 4: Simplify right side
    40,979.52x = 1,154,930,616.17
  5. Step 5: Solve for x
    x = 1,154,930,616.17/40,979.52
  6. Step 6: Final answer
    x = 28,183.12

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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.