Home / 23,640.54-35,287.80-20,838.15

Finding the Fourth Proportional to 23,640.54, 35,287.80 and 20,838.15

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Solution

The fourth proportional to 23,640.54, 35,287.80 and 20,838.15 is: 31,104.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,640.54 : 35,287.80 = 20,838.15 : x
  2. Step 2: Convert to fraction form
    23,640.54/35,287.80 = 20,838.15/x
  3. Step 3: Cross multiply
    23,640.54x = 35,287.80 × 20,838.15
  4. Step 4: Simplify right side
    23,640.54x = 735,332,469.57
  5. Step 5: Solve for x
    x = 735,332,469.57/23,640.54
  6. Step 6: Final answer
    x = 31,104.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.