Home / 20,020.28-30,034.68-5,980.16

Finding the Fourth Proportional to 20,020.28, 30,034.68 and 5,980.16

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Solution

The fourth proportional to 20,020.28, 30,034.68 and 5,980.16 is: 8,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.28 : 30,034.68 = 5,980.16 : x
  2. Step 2: Convert to fraction form
    20,020.28/30,034.68 = 5,980.16/x
  3. Step 3: Cross multiply
    20,020.28x = 30,034.68 × 5,980.16
  4. Step 4: Simplify right side
    20,020.28x = 179,612,191.95
  5. Step 5: Solve for x
    x = 179,612,191.95/20,020.28
  6. Step 6: Final answer
    x = 8,971.51

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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.