Home / 38,091.92-57,141.66-13,128.62

Finding the Fourth Proportional to 38,091.92, 57,141.66 and 13,128.62

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Solution

The fourth proportional to 38,091.92, 57,141.66 and 13,128.62 is: 19,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,091.92 : 57,141.66 = 13,128.62 : x
  2. Step 2: Convert to fraction form
    38,091.92/57,141.66 = 13,128.62/x
  3. Step 3: Cross multiply
    38,091.92x = 57,141.66 × 13,128.62
  4. Step 4: Simplify right side
    38,091.92x = 750,191,140.31
  5. Step 5: Solve for x
    x = 750,191,140.31/38,091.92
  6. Step 6: Final answer
    x = 19,694.23

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1.5x scale

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.