Home / 20,146.68-27,800.78-11,193.08

Finding the Fourth Proportional to 20,146.68, 27,800.78 and 11,193.08

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Solution

The fourth proportional to 20,146.68, 27,800.78 and 11,193.08 is: 15,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.68 : 27,800.78 = 11,193.08 : x
  2. Step 2: Convert to fraction form
    20,146.68/27,800.78 = 11,193.08/x
  3. Step 3: Cross multiply
    20,146.68x = 27,800.78 × 11,193.08
  4. Step 4: Simplify right side
    20,146.68x = 311,176,354.60
  5. Step 5: Solve for x
    x = 311,176,354.60/20,146.68
  6. Step 6: Final answer
    x = 15,445.54

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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.