Home / 27,719.68-38,253.16-15,144.43

Finding the Fourth Proportional to 27,719.68, 38,253.16 and 15,144.43

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Solution

The fourth proportional to 27,719.68, 38,253.16 and 15,144.43 is: 20,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.68 : 38,253.16 = 15,144.43 : x
  2. Step 2: Convert to fraction form
    27,719.68/38,253.16 = 15,144.43/x
  3. Step 3: Cross multiply
    27,719.68x = 38,253.16 × 15,144.43
  4. Step 4: Simplify right side
    27,719.68x = 579,322,228.18
  5. Step 5: Solve for x
    x = 579,322,228.18/27,719.68
  6. Step 6: Final answer
    x = 20,899.31

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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.