Home / 22,552.11-31,121.60-12,479.94

Finding the Fourth Proportional to 22,552.11, 31,121.60 and 12,479.94

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Solution

The fourth proportional to 22,552.11, 31,121.60 and 12,479.94 is: 17,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,552.11 : 31,121.60 = 12,479.94 : x
  2. Step 2: Convert to fraction form
    22,552.11/31,121.60 = 12,479.94/x
  3. Step 3: Cross multiply
    22,552.11x = 31,121.60 × 12,479.94
  4. Step 4: Simplify right side
    22,552.11x = 388,395,638.30
  5. Step 5: Solve for x
    x = 388,395,638.30/22,552.11
  6. Step 6: Final answer
    x = 17,222.14

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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.