Home / 20,105.56-30,168.33-9,020.08

Finding the Fourth Proportional to 20,105.56, 30,168.33 and 9,020.08

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Solution

The fourth proportional to 20,105.56, 30,168.33 and 9,020.08 is: 13,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.56 : 30,168.33 = 9,020.08 : x
  2. Step 2: Convert to fraction form
    20,105.56/30,168.33 = 9,020.08/x
  3. Step 3: Cross multiply
    20,105.56x = 30,168.33 × 9,020.08
  4. Step 4: Simplify right side
    20,105.56x = 272,120,750.07
  5. Step 5: Solve for x
    x = 272,120,750.07/20,105.56
  6. Step 6: Final answer
    x = 13,534.60

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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.