Home / 27,688.92-38,229.09-21,304.23

Finding the Fourth Proportional to 27,688.92, 38,229.09 and 21,304.23

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Solution

The fourth proportional to 27,688.92, 38,229.09 and 21,304.23 is: 29,413.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.92 : 38,229.09 = 21,304.23 : x
  2. Step 2: Convert to fraction form
    27,688.92/38,229.09 = 21,304.23/x
  3. Step 3: Cross multiply
    27,688.92x = 38,229.09 × 21,304.23
  4. Step 4: Simplify right side
    27,688.92x = 814,441,326.05
  5. Step 5: Solve for x
    x = 814,441,326.05/27,688.92
  6. Step 6: Final answer
    x = 29,413.98

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Double scale
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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.