Home / 22,044.32-30,421.44-11,972.80

Finding the Fourth Proportional to 22,044.32, 30,421.44 and 11,972.80

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Solution

The fourth proportional to 22,044.32, 30,421.44 and 11,972.80 is: 16,522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,044.32 : 30,421.44 = 11,972.80 : x
  2. Step 2: Convert to fraction form
    22,044.32/30,421.44 = 11,972.80/x
  3. Step 3: Cross multiply
    22,044.32x = 30,421.44 × 11,972.80
  4. Step 4: Simplify right side
    22,044.32x = 364,229,816.83
  5. Step 5: Solve for x
    x = 364,229,816.83/22,044.32
  6. Step 6: Final answer
    x = 16,522.62

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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.