Home / 20,132.64-30,185.18-10,252.80

Finding the Fourth Proportional to 20,132.64, 30,185.18 and 10,252.80

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Solution

The fourth proportional to 20,132.64, 30,185.18 and 10,252.80 is: 15,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.64 : 30,185.18 = 10,252.80 : x
  2. Step 2: Convert to fraction form
    20,132.64/30,185.18 = 10,252.80/x
  3. Step 3: Cross multiply
    20,132.64x = 30,185.18 × 10,252.80
  4. Step 4: Simplify right side
    20,132.64x = 309,482,613.50
  5. Step 5: Solve for x
    x = 309,482,613.50/20,132.64
  6. Step 6: Final answer
    x = 15,372.18

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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.