Home / 27,866.18-38,454.30-15,928.82

Finding the Fourth Proportional to 27,866.18, 38,454.30 and 15,928.82

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Solution

The fourth proportional to 27,866.18, 38,454.30 and 15,928.82 is: 21,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.18 : 38,454.30 = 15,928.82 : x
  2. Step 2: Convert to fraction form
    27,866.18/38,454.30 = 15,928.82/x
  3. Step 3: Cross multiply
    27,866.18x = 38,454.30 × 15,928.82
  4. Step 4: Simplify right side
    27,866.18x = 612,531,622.93
  5. Step 5: Solve for x
    x = 612,531,622.93/27,866.18
  6. Step 6: Final answer
    x = 21,981.18

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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.