Home / 20,147.24-30,220.82-5,356.16

Finding the Fourth Proportional to 20,147.24, 30,220.82 and 5,356.16

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Solution

The fourth proportional to 20,147.24, 30,220.82 and 5,356.16 is: 8,034.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.24 : 30,220.82 = 5,356.16 : x
  2. Step 2: Convert to fraction form
    20,147.24/30,220.82 = 5,356.16/x
  3. Step 3: Cross multiply
    20,147.24x = 30,220.82 × 5,356.16
  4. Step 4: Simplify right side
    20,147.24x = 161,867,409.54
  5. Step 5: Solve for x
    x = 161,867,409.54/20,147.24
  6. Step 6: Final answer
    x = 8,034.22

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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.