Home / 21,329.06-31,949.78-17,146.49

Finding the Fourth Proportional to 21,329.06, 31,949.78 and 17,146.49

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Solution

The fourth proportional to 21,329.06, 31,949.78 and 17,146.49 is: 25,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.06 : 31,949.78 = 17,146.49 : x
  2. Step 2: Convert to fraction form
    21,329.06/31,949.78 = 17,146.49/x
  3. Step 3: Cross multiply
    21,329.06x = 31,949.78 × 17,146.49
  4. Step 4: Simplify right side
    21,329.06x = 547,826,337.79
  5. Step 5: Solve for x
    x = 547,826,337.79/21,329.06
  6. Step 6: Final answer
    x = 25,684.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.