Home / 22,043.57-30,420.45-11,972.03

Finding the Fourth Proportional to 22,043.57, 30,420.45 and 11,972.03

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Solution

The fourth proportional to 22,043.57, 30,420.45 and 11,972.03 is: 16,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.57 : 30,420.45 = 11,972.03 : x
  2. Step 2: Convert to fraction form
    22,043.57/30,420.45 = 11,972.03/x
  3. Step 3: Cross multiply
    22,043.57x = 30,420.45 × 11,972.03
  4. Step 4: Simplify right side
    22,043.57x = 364,194,480.15
  5. Step 5: Solve for x
    x = 364,194,480.15/22,043.57
  6. Step 6: Final answer
    x = 16,521.57

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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.