Home / 20,162.16-30,246.48-7,018.29

Finding the Fourth Proportional to 20,162.16, 30,246.48 and 7,018.29

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Solution

The fourth proportional to 20,162.16, 30,246.48 and 7,018.29 is: 10,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.16 : 30,246.48 = 7,018.29 : x
  2. Step 2: Convert to fraction form
    20,162.16/30,246.48 = 7,018.29/x
  3. Step 3: Cross multiply
    20,162.16x = 30,246.48 × 7,018.29
  4. Step 4: Simplify right side
    20,162.16x = 212,278,568.12
  5. Step 5: Solve for x
    x = 212,278,568.12/20,162.16
  6. Step 6: Final answer
    x = 10,528.56

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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.