Home / 20,080.64-30,121.92-9,701.12

Finding the Fourth Proportional to 20,080.64, 30,121.92 and 9,701.12

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Solution

The fourth proportional to 20,080.64, 30,121.92 and 9,701.12 is: 14,552.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.64 : 30,121.92 = 9,701.12 : x
  2. Step 2: Convert to fraction form
    20,080.64/30,121.92 = 9,701.12/x
  3. Step 3: Cross multiply
    20,080.64x = 30,121.92 × 9,701.12
  4. Step 4: Simplify right side
    20,080.64x = 292,216,360.55
  5. Step 5: Solve for x
    x = 292,216,360.55/20,080.64
  6. Step 6: Final answer
    x = 14,552.14

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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.