Home / 20,080.53-30,127.98-12,199.13

Finding the Fourth Proportional to 20,080.53, 30,127.98 and 12,199.13

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Solution

The fourth proportional to 20,080.53, 30,127.98 and 12,199.13 is: 18,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.53 : 30,127.98 = 12,199.13 : x
  2. Step 2: Convert to fraction form
    20,080.53/30,127.98 = 12,199.13/x
  3. Step 3: Cross multiply
    20,080.53x = 30,127.98 × 12,199.13
  4. Step 4: Simplify right side
    20,080.53x = 367,535,134.55
  5. Step 5: Solve for x
    x = 367,535,134.55/20,080.53
  6. Step 6: Final answer
    x = 18,303.06

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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.