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Finding the Fourth Proportional to 22,700.78, 31,324.08 and 12,627.22

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Solution

The fourth proportional to 22,700.78, 31,324.08 and 12,627.22 is: 17,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.78 : 31,324.08 = 12,627.22 : x
  2. Step 2: Convert to fraction form
    22,700.78/31,324.08 = 12,627.22/x
  3. Step 3: Cross multiply
    22,700.78x = 31,324.08 × 12,627.22
  4. Step 4: Simplify right side
    22,700.78x = 395,536,049.46
  5. Step 5: Solve for x
    x = 395,536,049.46/22,700.78
  6. Step 6: Final answer
    x = 17,423.90

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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.