Home / 19,171.20-28,761.14-5,845.40

Finding the Fourth Proportional to 19,171.20, 28,761.14 and 5,845.40

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Solution

The fourth proportional to 19,171.20, 28,761.14 and 5,845.40 is: 8,769.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.20 : 28,761.14 = 5,845.40 : x
  2. Step 2: Convert to fraction form
    19,171.20/28,761.14 = 5,845.40/x
  3. Step 3: Cross multiply
    19,171.20x = 28,761.14 × 5,845.40
  4. Step 4: Simplify right side
    19,171.20x = 168,120,367.76
  5. Step 5: Solve for x
    x = 168,120,367.76/19,171.20
  6. Step 6: Final answer
    x = 8,769.42

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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.