Home / 27,871.68-38,462.42-15,772.04

Finding the Fourth Proportional to 27,871.68, 38,462.42 and 15,772.04

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Solution

The fourth proportional to 27,871.68, 38,462.42 and 15,772.04 is: 21,765.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871.68 : 38,462.42 = 15,772.04 : x
  2. Step 2: Convert to fraction form
    27,871.68/38,462.42 = 15,772.04/x
  3. Step 3: Cross multiply
    27,871.68x = 38,462.42 × 15,772.04
  4. Step 4: Simplify right side
    27,871.68x = 606,630,826.74
  5. Step 5: Solve for x
    x = 606,630,826.74/27,871.68
  6. Step 6: Final answer
    x = 21,765.13

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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.