Home / 27,871.10-38,462.39-15,124.26

Finding the Fourth Proportional to 27,871.10, 38,462.39 and 15,124.26

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Solution

The fourth proportional to 27,871.10, 38,462.39 and 15,124.26 is: 20,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871.10 : 38,462.39 = 15,124.26 : x
  2. Step 2: Convert to fraction form
    27,871.10/38,462.39 = 15,124.26/x
  3. Step 3: Cross multiply
    27,871.10x = 38,462.39 × 15,124.26
  4. Step 4: Simplify right side
    27,871.10x = 581,715,186.58
  5. Step 5: Solve for x
    x = 581,715,186.58/27,871.10
  6. Step 6: Final answer
    x = 20,871.63

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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.