Home / 22,044.30-30,421.20-11,972.91

Finding the Fourth Proportional to 22,044.30, 30,421.20 and 11,972.91

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Solution

The fourth proportional to 22,044.30, 30,421.20 and 11,972.91 is: 16,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,044.30 : 30,421.20 = 11,972.91 : x
  2. Step 2: Convert to fraction form
    22,044.30/30,421.20 = 11,972.91/x
  3. Step 3: Cross multiply
    22,044.30x = 30,421.20 × 11,972.91
  4. Step 4: Simplify right side
    22,044.30x = 364,230,289.69
  5. Step 5: Solve for x
    x = 364,230,289.69/22,044.30
  6. Step 6: Final answer
    x = 16,522.65

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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.