Home / 38,091.89-57,115.95-20,300.65

Finding the Fourth Proportional to 38,091.89, 57,115.95 and 20,300.65

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Solution

The fourth proportional to 38,091.89, 57,115.95 and 20,300.65 is: 30,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,091.89 : 57,115.95 = 20,300.65 : x
  2. Step 2: Convert to fraction form
    38,091.89/57,115.95 = 20,300.65/x
  3. Step 3: Cross multiply
    38,091.89x = 57,115.95 × 20,300.65
  4. Step 4: Simplify right side
    38,091.89x = 1,159,490,910.37
  5. Step 5: Solve for x
    x = 1,159,490,910.37/38,091.89
  6. Step 6: Final answer
    x = 30,439.31

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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.