Home / 22,043.68-30,420.28-11,972.13

Finding the Fourth Proportional to 22,043.68, 30,420.28 and 11,972.13

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Solution

The fourth proportional to 22,043.68, 30,420.28 and 11,972.13 is: 16,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.68 : 30,420.28 = 11,972.13 : x
  2. Step 2: Convert to fraction form
    22,043.68/30,420.28 = 11,972.13/x
  3. Step 3: Cross multiply
    22,043.68x = 30,420.28 × 11,972.13
  4. Step 4: Simplify right side
    22,043.68x = 364,195,380.34
  5. Step 5: Solve for x
    x = 364,195,380.34/22,043.68
  6. Step 6: Final answer
    x = 16,521.53

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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.