Home / 39,822.45-54,955.02-21,917.46

Finding the Fourth Proportional to 39,822.45, 54,955.02 and 21,917.46

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Solution

The fourth proportional to 39,822.45, 54,955.02 and 21,917.46 is: 30,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,822.45 : 54,955.02 = 21,917.46 : x
  2. Step 2: Convert to fraction form
    39,822.45/54,955.02 = 21,917.46/x
  3. Step 3: Cross multiply
    39,822.45x = 54,955.02 × 21,917.46
  4. Step 4: Simplify right side
    39,822.45x = 1,204,474,452.65
  5. Step 5: Solve for x
    x = 1,204,474,452.65/39,822.45
  6. Step 6: Final answer
    x = 30,246.12

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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.