Home / 20,199.65-27,875.54-11,248.88

Finding the Fourth Proportional to 20,199.65, 27,875.54 and 11,248.88

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Solution

The fourth proportional to 20,199.65, 27,875.54 and 11,248.88 is: 15,523.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.65 : 27,875.54 = 11,248.88 : x
  2. Step 2: Convert to fraction form
    20,199.65/27,875.54 = 11,248.88/x
  3. Step 3: Cross multiply
    20,199.65x = 27,875.54 × 11,248.88
  4. Step 4: Simplify right side
    20,199.65x = 313,568,493.14
  5. Step 5: Solve for x
    x = 313,568,493.14/20,199.65
  6. Step 6: Final answer
    x = 15,523.47

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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.