Home / 27,116.80-40,671.45-8,409.70

Finding the Fourth Proportional to 27,116.80, 40,671.45 and 8,409.70

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Solution

The fourth proportional to 27,116.80, 40,671.45 and 8,409.70 is: 12,613.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,116.80 : 40,671.45 = 8,409.70 : x
  2. Step 2: Convert to fraction form
    27,116.80/40,671.45 = 8,409.70/x
  3. Step 3: Cross multiply
    27,116.80x = 40,671.45 × 8,409.70
  4. Step 4: Simplify right side
    27,116.80x = 342,034,693.07
  5. Step 5: Solve for x
    x = 342,034,693.07/27,116.80
  6. Step 6: Final answer
    x = 12,613.39

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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.