Home / 22,706.78-31,335.26-12,636.18

Finding the Fourth Proportional to 22,706.78, 31,335.26 and 12,636.18

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Solution

The fourth proportional to 22,706.78, 31,335.26 and 12,636.18 is: 17,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,706.78 : 31,335.26 = 12,636.18 : x
  2. Step 2: Convert to fraction form
    22,706.78/31,335.26 = 12,636.18/x
  3. Step 3: Cross multiply
    22,706.78x = 31,335.26 × 12,636.18
  4. Step 4: Simplify right side
    22,706.78x = 395,957,922.53
  5. Step 5: Solve for x
    x = 395,957,922.53/22,706.78
  6. Step 6: Final answer
    x = 17,437.88

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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.