Home / 20,148.40-27,803.46-11,195.68

Finding the Fourth Proportional to 20,148.40, 27,803.46 and 11,195.68

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Solution

The fourth proportional to 20,148.40, 27,803.46 and 11,195.68 is: 15,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.40 : 27,803.46 = 11,195.68 : x
  2. Step 2: Convert to fraction form
    20,148.40/27,803.46 = 11,195.68/x
  3. Step 3: Cross multiply
    20,148.40x = 27,803.46 × 11,195.68
  4. Step 4: Simplify right side
    20,148.40x = 311,278,641.05
  5. Step 5: Solve for x
    x = 311,278,641.05/20,148.40
  6. Step 6: Final answer
    x = 15,449.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.