Home / 20,148.68-27,805.67-11,196.56

Finding the Fourth Proportional to 20,148.68, 27,805.67 and 11,196.56

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Solution

The fourth proportional to 20,148.68, 27,805.67 and 11,196.56 is: 15,451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.68 : 27,805.67 = 11,196.56 : x
  2. Step 2: Convert to fraction form
    20,148.68/27,805.67 = 11,196.56/x
  3. Step 3: Cross multiply
    20,148.68x = 27,805.67 × 11,196.56
  4. Step 4: Simplify right side
    20,148.68x = 311,327,657.48
  5. Step 5: Solve for x
    x = 311,327,657.48/20,148.68
  6. Step 6: Final answer
    x = 15,451.52

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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.