Home / 28,231.14-42,352.20-8,508.72

Finding the Fourth Proportional to 28,231.14, 42,352.20 and 8,508.72

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Solution

The fourth proportional to 28,231.14, 42,352.20 and 8,508.72 is: 12,764.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.14 : 42,352.20 = 8,508.72 : x
  2. Step 2: Convert to fraction form
    28,231.14/42,352.20 = 8,508.72/x
  3. Step 3: Cross multiply
    28,231.14x = 42,352.20 × 8,508.72
  4. Step 4: Simplify right side
    28,231.14x = 360,363,011.18
  5. Step 5: Solve for x
    x = 360,363,011.18/28,231.14
  6. Step 6: Final answer
    x = 12,764.73

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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.