Home / 27,370.34-37,781.28-21,308.57

Finding the Fourth Proportional to 27,370.34, 37,781.28 and 21,308.57

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Solution

The fourth proportional to 27,370.34, 37,781.28 and 21,308.57 is: 29,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,370.34 : 37,781.28 = 21,308.57 : x
  2. Step 2: Convert to fraction form
    27,370.34/37,781.28 = 21,308.57/x
  3. Step 3: Cross multiply
    27,370.34x = 37,781.28 × 21,308.57
  4. Step 4: Simplify right side
    27,370.34x = 805,065,049.57
  5. Step 5: Solve for x
    x = 805,065,049.57/27,370.34
  6. Step 6: Final answer
    x = 29,413.78

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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.