Home / 27,871.14-38,461.79-15,295.89

Finding the Fourth Proportional to 27,871.14, 38,461.79 and 15,295.89

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Solution

The fourth proportional to 27,871.14, 38,461.79 and 15,295.89 is: 21,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871.14 : 38,461.79 = 15,295.89 : x
  2. Step 2: Convert to fraction form
    27,871.14/38,461.79 = 15,295.89/x
  3. Step 3: Cross multiply
    27,871.14x = 38,461.79 × 15,295.89
  4. Step 4: Simplify right side
    27,871.14x = 588,307,347.28
  5. Step 5: Solve for x
    x = 588,307,347.28/27,871.14
  6. Step 6: Final answer
    x = 21,108.12

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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.