Home / 67,214.28-100,821.42-20,467.16

Finding the Fourth Proportional to 67,214.28, 100,821.42 and 20,467.16

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Solution

The fourth proportional to 67,214.28, 100,821.42 and 20,467.16 is: 30,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,214.28 : 100,821.42 = 20,467.16 : x
  2. Step 2: Convert to fraction form
    67,214.28/100,821.42 = 20,467.16/x
  3. Step 3: Cross multiply
    67,214.28x = 100,821.42 × 20,467.16
  4. Step 4: Simplify right side
    67,214.28x = 2,063,528,134.57
  5. Step 5: Solve for x
    x = 2,063,528,134.57/67,214.28
  6. Step 6: Final answer
    x = 30,700.74

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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.