Home / 27,760.18-38,310.04-15,821.59

Finding the Fourth Proportional to 27,760.18, 38,310.04 and 15,821.59

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Solution

The fourth proportional to 27,760.18, 38,310.04 and 15,821.59 is: 21,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,760.18 : 38,310.04 = 15,821.59 : x
  2. Step 2: Convert to fraction form
    27,760.18/38,310.04 = 15,821.59/x
  3. Step 3: Cross multiply
    27,760.18x = 38,310.04 × 15,821.59
  4. Step 4: Simplify right side
    27,760.18x = 606,125,745.76
  5. Step 5: Solve for x
    x = 606,125,745.76/27,760.18
  6. Step 6: Final answer
    x = 21,834.36

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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.