Home / 26,880.65-40,321.13-8,160.72

Finding the Fourth Proportional to 26,880.65, 40,321.13 and 8,160.72

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Solution

The fourth proportional to 26,880.65, 40,321.13 and 8,160.72 is: 12,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,880.65 : 40,321.13 = 8,160.72 : x
  2. Step 2: Convert to fraction form
    26,880.65/40,321.13 = 8,160.72/x
  3. Step 3: Cross multiply
    26,880.65x = 40,321.13 × 8,160.72
  4. Step 4: Simplify right side
    26,880.65x = 329,049,452.01
  5. Step 5: Solve for x
    x = 329,049,452.01/26,880.65
  6. Step 6: Final answer
    x = 12,241.13

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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.