Home / 20,160.36-30,230.18-9,057.53

Finding the Fourth Proportional to 20,160.36, 30,230.18 and 9,057.53

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Solution

The fourth proportional to 20,160.36, 30,230.18 and 9,057.53 is: 13,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.36 : 30,230.18 = 9,057.53 : x
  2. Step 2: Convert to fraction form
    20,160.36/30,230.18 = 9,057.53/x
  3. Step 3: Cross multiply
    20,160.36x = 30,230.18 × 9,057.53
  4. Step 4: Simplify right side
    20,160.36x = 273,810,565.82
  5. Step 5: Solve for x
    x = 273,810,565.82/20,160.36
  6. Step 6: Final answer
    x = 13,581.63

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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.