Home / 20,086.68-27,719.76-11,590.56

Finding the Fourth Proportional to 20,086.68, 27,719.76 and 11,590.56

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Solution

The fourth proportional to 20,086.68, 27,719.76 and 11,590.56 is: 15,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.68 : 27,719.76 = 11,590.56 : x
  2. Step 2: Convert to fraction form
    20,086.68/27,719.76 = 11,590.56/x
  3. Step 3: Cross multiply
    20,086.68x = 27,719.76 × 11,590.56
  4. Step 4: Simplify right side
    20,086.68x = 321,287,541.47
  5. Step 5: Solve for x
    x = 321,287,541.47/20,086.68
  6. Step 6: Final answer
    x = 15,995.05

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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.