Home / 23,972.40-36,023.40-21,121.20

Finding the Fourth Proportional to 23,972.40, 36,023.40 and 21,121.20

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Solution

The fourth proportional to 23,972.40, 36,023.40 and 21,121.20 is: 31,738.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,972.40 : 36,023.40 = 21,121.20 : x
  2. Step 2: Convert to fraction form
    23,972.40/36,023.40 = 21,121.20/x
  3. Step 3: Cross multiply
    23,972.40x = 36,023.40 × 21,121.20
  4. Step 4: Simplify right side
    23,972.40x = 760,857,436.08
  5. Step 5: Solve for x
    x = 760,857,436.08/23,972.40
  6. Step 6: Final answer
    x = 31,738.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.