Home / 27,827.10-38,400.75-15,251.58

Finding the Fourth Proportional to 27,827.10, 38,400.75 and 15,251.58

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Solution

The fourth proportional to 27,827.10, 38,400.75 and 15,251.58 is: 21,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,827.10 : 38,400.75 = 15,251.58 : x
  2. Step 2: Convert to fraction form
    27,827.10/38,400.75 = 15,251.58/x
  3. Step 3: Cross multiply
    27,827.10x = 38,400.75 × 15,251.58
  4. Step 4: Simplify right side
    27,827.10x = 585,672,110.69
  5. Step 5: Solve for x
    x = 585,672,110.69/27,827.10
  6. Step 6: Final answer
    x = 21,046.83

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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.