Home / 40,700.43-61,042.41-11,115.79

Finding the Fourth Proportional to 40,700.43, 61,042.41 and 11,115.79

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Solution

The fourth proportional to 40,700.43, 61,042.41 and 11,115.79 is: 16,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,700.43 : 61,042.41 = 11,115.79 : x
  2. Step 2: Convert to fraction form
    40,700.43/61,042.41 = 11,115.79/x
  3. Step 3: Cross multiply
    40,700.43x = 61,042.41 × 11,115.79
  4. Step 4: Simplify right side
    40,700.43x = 678,534,458.05
  5. Step 5: Solve for x
    x = 678,534,458.05/40,700.43
  6. Step 6: Final answer
    x = 16,671.43

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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.