Home / 39,712.13-54,803.19-21,806.73

Finding the Fourth Proportional to 39,712.13, 54,803.19 and 21,806.73

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Solution

The fourth proportional to 39,712.13, 54,803.19 and 21,806.73 is: 30,093.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,712.13 : 54,803.19 = 21,806.73 : x
  2. Step 2: Convert to fraction form
    39,712.13/54,803.19 = 21,806.73/x
  3. Step 3: Cross multiply
    39,712.13x = 54,803.19 × 21,806.73
  4. Step 4: Simplify right side
    39,712.13x = 1,195,078,367.47
  5. Step 5: Solve for x
    x = 1,195,078,367.47/39,712.13
  6. Step 6: Final answer
    x = 30,093.53

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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.