Home / 28,744.76-43,109.28-18,198.90

Finding the Fourth Proportional to 28,744.76, 43,109.28 and 18,198.90

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Solution

The fourth proportional to 28,744.76, 43,109.28 and 18,198.90 is: 27,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.76 : 43,109.28 = 18,198.90 : x
  2. Step 2: Convert to fraction form
    28,744.76/43,109.28 = 18,198.90/x
  3. Step 3: Cross multiply
    28,744.76x = 43,109.28 × 18,198.90
  4. Step 4: Simplify right side
    28,744.76x = 784,541,475.79
  5. Step 5: Solve for x
    x = 784,541,475.79/28,744.76
  6. Step 6: Final answer
    x = 27,293.37

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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.