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Finding the Fourth Proportional to 22,297.52, 30,775.12 and 12,864.80

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Solution

The fourth proportional to 22,297.52, 30,775.12 and 12,864.80 is: 17,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,297.52 : 30,775.12 = 12,864.80 : x
  2. Step 2: Convert to fraction form
    22,297.52/30,775.12 = 12,864.80/x
  3. Step 3: Cross multiply
    22,297.52x = 30,775.12 × 12,864.80
  4. Step 4: Simplify right side
    22,297.52x = 395,915,763.78
  5. Step 5: Solve for x
    x = 395,915,763.78/22,297.52
  6. Step 6: Final answer
    x = 17,756.04

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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.