Home / 39,348.70-54,301.80-21,443.65

Finding the Fourth Proportional to 39,348.70, 54,301.80 and 21,443.65

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Solution

The fourth proportional to 39,348.70, 54,301.80 and 21,443.65 is: 29,592.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,348.70 : 54,301.80 = 21,443.65 : x
  2. Step 2: Convert to fraction form
    39,348.70/54,301.80 = 21,443.65/x
  3. Step 3: Cross multiply
    39,348.70x = 54,301.80 × 21,443.65
  4. Step 4: Simplify right side
    39,348.70x = 1,164,428,793.57
  5. Step 5: Solve for x
    x = 1,164,428,793.57/39,348.70
  6. Step 6: Final answer
    x = 29,592.56

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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.