Home / 20,082.09-30,120.86-5,292.17

Finding the Fourth Proportional to 20,082.09, 30,120.86 and 5,292.17

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Solution

The fourth proportional to 20,082.09, 30,120.86 and 5,292.17 is: 7,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.09 : 30,120.86 = 5,292.17 : x
  2. Step 2: Convert to fraction form
    20,082.09/30,120.86 = 5,292.17/x
  3. Step 3: Cross multiply
    20,082.09x = 30,120.86 × 5,292.17
  4. Step 4: Simplify right side
    20,082.09x = 159,404,534.60
  5. Step 5: Solve for x
    x = 159,404,534.60/20,082.09
  6. Step 6: Final answer
    x = 7,937.65

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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.