Home / 22,262.79-30,722.10-12,191.65

Finding the Fourth Proportional to 22,262.79, 30,722.10 and 12,191.65

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Solution

The fourth proportional to 22,262.79, 30,722.10 and 12,191.65 is: 16,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.79 : 30,722.10 = 12,191.65 : x
  2. Step 2: Convert to fraction form
    22,262.79/30,722.10 = 12,191.65/x
  3. Step 3: Cross multiply
    22,262.79x = 30,722.10 × 12,191.65
  4. Step 4: Simplify right side
    22,262.79x = 374,553,090.47
  5. Step 5: Solve for x
    x = 374,553,090.47/22,262.79
  6. Step 6: Final answer
    x = 16,824.18

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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.