Home / 20,527.57-30,803.52-8,680.71

Finding the Fourth Proportional to 20,527.57, 30,803.52 and 8,680.71

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Solution

The fourth proportional to 20,527.57, 30,803.52 and 8,680.71 is: 13,026.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.57 : 30,803.52 = 8,680.71 : x
  2. Step 2: Convert to fraction form
    20,527.57/30,803.52 = 8,680.71/x
  3. Step 3: Cross multiply
    20,527.57x = 30,803.52 × 8,680.71
  4. Step 4: Simplify right side
    20,527.57x = 267,396,424.10
  5. Step 5: Solve for x
    x = 267,396,424.10/20,527.57
  6. Step 6: Final answer
    x = 13,026.21

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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.