Home / 39,862.10-55,010.15-21,956.73

Finding the Fourth Proportional to 39,862.10, 55,010.15 and 21,956.73

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Solution

The fourth proportional to 39,862.10, 55,010.15 and 21,956.73 is: 30,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.10 : 55,010.15 = 21,956.73 : x
  2. Step 2: Convert to fraction form
    39,862.10/55,010.15 = 21,956.73/x
  3. Step 3: Cross multiply
    39,862.10x = 55,010.15 × 21,956.73
  4. Step 4: Simplify right side
    39,862.10x = 1,207,842,901.03
  5. Step 5: Solve for x
    x = 1,207,842,901.03/39,862.10
  6. Step 6: Final answer
    x = 30,300.54

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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.