Home / 20,275.32-30,412.32-9,182.04

Finding the Fourth Proportional to 20,275.32, 30,412.32 and 9,182.04

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Solution

The fourth proportional to 20,275.32, 30,412.32 and 9,182.04 is: 13,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.32 : 30,412.32 = 9,182.04 : x
  2. Step 2: Convert to fraction form
    20,275.32/30,412.32 = 9,182.04/x
  3. Step 3: Cross multiply
    20,275.32x = 30,412.32 × 9,182.04
  4. Step 4: Simplify right side
    20,275.32x = 279,247,138.73
  5. Step 5: Solve for x
    x = 279,247,138.73/20,275.32
  6. Step 6: Final answer
    x = 13,772.76

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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.