Home / 21,718.60-29,976.29-16,627.66

Finding the Fourth Proportional to 21,718.60, 29,976.29 and 16,627.66

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Solution

The fourth proportional to 21,718.60, 29,976.29 and 16,627.66 is: 22,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,718.60 : 29,976.29 = 16,627.66 : x
  2. Step 2: Convert to fraction form
    21,718.60/29,976.29 = 16,627.66/x
  3. Step 3: Cross multiply
    21,718.60x = 29,976.29 × 16,627.66
  4. Step 4: Simplify right side
    21,718.60x = 498,435,558.18
  5. Step 5: Solve for x
    x = 498,435,558.18/21,718.60
  6. Step 6: Final answer
    x = 22,949.71

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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.