Home / 27,370.31-41,055.41-21,139.38

Finding the Fourth Proportional to 27,370.31, 41,055.41 and 21,139.38

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Solution

The fourth proportional to 27,370.31, 41,055.41 and 21,139.38 is: 31,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,370.31 : 41,055.41 = 21,139.38 : x
  2. Step 2: Convert to fraction form
    27,370.31/41,055.41 = 21,139.38/x
  3. Step 3: Cross multiply
    27,370.31x = 41,055.41 × 21,139.38
  4. Step 4: Simplify right side
    27,370.31x = 867,885,965.89
  5. Step 5: Solve for x
    x = 867,885,965.89/27,370.31
  6. Step 6: Final answer
    x = 31,709.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.