Home / 38,640.54-57,955.23-12,341.82

Finding the Fourth Proportional to 38,640.54, 57,955.23 and 12,341.82

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Solution

The fourth proportional to 38,640.54, 57,955.23 and 12,341.82 is: 18,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,640.54 : 57,955.23 = 12,341.82 : x
  2. Step 2: Convert to fraction form
    38,640.54/57,955.23 = 12,341.82/x
  3. Step 3: Cross multiply
    38,640.54x = 57,955.23 × 12,341.82
  4. Step 4: Simplify right side
    38,640.54x = 715,273,016.72
  5. Step 5: Solve for x
    x = 715,273,016.72/38,640.54
  6. Step 6: Final answer
    x = 18,510.95

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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.