Home / 22,282.39-30,751.50-12,725.20

Finding the Fourth Proportional to 22,282.39, 30,751.50 and 12,725.20

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Solution

The fourth proportional to 22,282.39, 30,751.50 and 12,725.20 is: 17,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,282.39 : 30,751.50 = 12,725.20 : x
  2. Step 2: Convert to fraction form
    22,282.39/30,751.50 = 12,725.20/x
  3. Step 3: Cross multiply
    22,282.39x = 30,751.50 × 12,725.20
  4. Step 4: Simplify right side
    22,282.39x = 391,318,987.80
  5. Step 5: Solve for x
    x = 391,318,987.80/22,282.39
  6. Step 6: Final answer
    x = 17,561.80

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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.