Home / 31,189.14-43,041.24-17,042.76

Finding the Fourth Proportional to 31,189.14, 43,041.24 and 17,042.76

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Solution

The fourth proportional to 31,189.14, 43,041.24 and 17,042.76 is: 23,519.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.14 : 43,041.24 = 17,042.76 : x
  2. Step 2: Convert to fraction form
    31,189.14/43,041.24 = 17,042.76/x
  3. Step 3: Cross multiply
    31,189.14x = 43,041.24 × 17,042.76
  4. Step 4: Simplify right side
    31,189.14x = 733,541,523.42
  5. Step 5: Solve for x
    x = 733,541,523.42/31,189.14
  6. Step 6: Final answer
    x = 23,519.13

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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.