Home / 22,389.27-30,897.92-12,318.44

Finding the Fourth Proportional to 22,389.27, 30,897.92 and 12,318.44

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Solution

The fourth proportional to 22,389.27, 30,897.92 and 12,318.44 is: 16,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,389.27 : 30,897.92 = 12,318.44 : x
  2. Step 2: Convert to fraction form
    22,389.27/30,897.92 = 12,318.44/x
  3. Step 3: Cross multiply
    22,389.27x = 30,897.92 × 12,318.44
  4. Step 4: Simplify right side
    22,389.27x = 380,614,173.64
  5. Step 5: Solve for x
    x = 380,614,173.64/22,389.27
  6. Step 6: Final answer
    x = 16,999.85

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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.