Home / 22,289.42-30,759.12-12,217.74

Finding the Fourth Proportional to 22,289.42, 30,759.12 and 12,217.74

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Solution

The fourth proportional to 22,289.42, 30,759.12 and 12,217.74 is: 16,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.42 : 30,759.12 = 12,217.74 : x
  2. Step 2: Convert to fraction form
    22,289.42/30,759.12 = 12,217.74/x
  3. Step 3: Cross multiply
    22,289.42x = 30,759.12 × 12,217.74
  4. Step 4: Simplify right side
    22,289.42x = 375,806,930.79
  5. Step 5: Solve for x
    x = 375,806,930.79/22,289.42
  6. Step 6: Final answer
    x = 16,860.33

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Double scale
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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.