Home / 39,806.17-54,932.52-21,900.80

Finding the Fourth Proportional to 39,806.17, 54,932.52 and 21,900.80

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Solution

The fourth proportional to 39,806.17, 54,932.52 and 21,900.80 is: 30,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,806.17 : 54,932.52 = 21,900.80 : x
  2. Step 2: Convert to fraction form
    39,806.17/54,932.52 = 21,900.80/x
  3. Step 3: Cross multiply
    39,806.17x = 54,932.52 × 21,900.80
  4. Step 4: Simplify right side
    39,806.17x = 1,203,066,134.02
  5. Step 5: Solve for x
    x = 1,203,066,134.02/39,806.17
  6. Step 6: Final answer
    x = 30,223.11

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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.