Home / 28,854.62-43,278.69-8,079.74

Finding the Fourth Proportional to 28,854.62, 43,278.69 and 8,079.74

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Solution

The fourth proportional to 28,854.62, 43,278.69 and 8,079.74 is: 12,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.62 : 43,278.69 = 8,079.74 : x
  2. Step 2: Convert to fraction form
    28,854.62/43,278.69 = 8,079.74/x
  3. Step 3: Cross multiply
    28,854.62x = 43,278.69 × 8,079.74
  4. Step 4: Simplify right side
    28,854.62x = 349,680,562.74
  5. Step 5: Solve for x
    x = 349,680,562.74/28,854.62
  6. Step 6: Final answer
    x = 12,118.70

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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.