Home / 20,082.53-30,130.98-12,201.13

Finding the Fourth Proportional to 20,082.53, 30,130.98 and 12,201.13

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Solution

The fourth proportional to 20,082.53, 30,130.98 and 12,201.13 is: 18,306.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.53 : 30,130.98 = 12,201.13 : x
  2. Step 2: Convert to fraction form
    20,082.53/30,130.98 = 12,201.13/x
  3. Step 3: Cross multiply
    20,082.53x = 30,130.98 × 12,201.13
  4. Step 4: Simplify right side
    20,082.53x = 367,632,004.01
  5. Step 5: Solve for x
    x = 367,632,004.01/20,082.53
  6. Step 6: Final answer
    x = 18,306.06

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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.