Home / 38,218.28-57,334.16-11,916.48

Finding the Fourth Proportional to 38,218.28, 57,334.16 and 11,916.48

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Solution

The fourth proportional to 38,218.28, 57,334.16 and 11,916.48 is: 17,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.28 : 57,334.16 = 11,916.48 : x
  2. Step 2: Convert to fraction form
    38,218.28/57,334.16 = 11,916.48/x
  3. Step 3: Cross multiply
    38,218.28x = 57,334.16 × 11,916.48
  4. Step 4: Simplify right side
    38,218.28x = 683,221,370.96
  5. Step 5: Solve for x
    x = 683,221,370.96/38,218.28
  6. Step 6: Final answer
    x = 17,876.82

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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.