Home / 22,343.18-30,844.08-12,909.92

Finding the Fourth Proportional to 22,343.18, 30,844.08 and 12,909.92

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Solution

The fourth proportional to 22,343.18, 30,844.08 and 12,909.92 is: 17,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,343.18 : 30,844.08 = 12,909.92 : x
  2. Step 2: Convert to fraction form
    22,343.18/30,844.08 = 12,909.92/x
  3. Step 3: Cross multiply
    22,343.18x = 30,844.08 × 12,909.92
  4. Step 4: Simplify right side
    22,343.18x = 398,194,451.05
  5. Step 5: Solve for x
    x = 398,194,451.05/22,343.18
  6. Step 6: Final answer
    x = 17,821.75

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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.