Home / 28,488.74-42,733.20-8,767.18

Finding the Fourth Proportional to 28,488.74, 42,733.20 and 8,767.18

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Solution

The fourth proportional to 28,488.74, 42,733.20 and 8,767.18 is: 13,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.74 : 42,733.20 = 8,767.18 : x
  2. Step 2: Convert to fraction form
    28,488.74/42,733.20 = 8,767.18/x
  3. Step 3: Cross multiply
    28,488.74x = 42,733.20 × 8,767.18
  4. Step 4: Simplify right side
    28,488.74x = 374,649,442.71
  5. Step 5: Solve for x
    x = 374,649,442.71/28,488.74
  6. Step 6: Final answer
    x = 13,150.79

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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.