Home / 27,701.91-38,228.49-15,765.15

Finding the Fourth Proportional to 27,701.91, 38,228.49 and 15,765.15

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Solution

The fourth proportional to 27,701.91, 38,228.49 and 15,765.15 is: 21,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,701.91 : 38,228.49 = 15,765.15 : x
  2. Step 2: Convert to fraction form
    27,701.91/38,228.49 = 15,765.15/x
  3. Step 3: Cross multiply
    27,701.91x = 38,228.49 × 15,765.15
  4. Step 4: Simplify right side
    27,701.91x = 602,677,879.12
  5. Step 5: Solve for x
    x = 602,677,879.12/27,701.91
  6. Step 6: Final answer
    x = 21,755.82

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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.