Home / 38,085.45-57,128.19-13,132.65

Finding the Fourth Proportional to 38,085.45, 57,128.19 and 13,132.65

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Solution

The fourth proportional to 38,085.45, 57,128.19 and 13,132.65 is: 19,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,085.45 : 57,128.19 = 13,132.65 : x
  2. Step 2: Convert to fraction form
    38,085.45/57,128.19 = 13,132.65/x
  3. Step 3: Cross multiply
    38,085.45x = 57,128.19 × 13,132.65
  4. Step 4: Simplify right side
    38,085.45x = 750,244,524.40
  5. Step 5: Solve for x
    x = 750,244,524.40/38,085.45
  6. Step 6: Final answer
    x = 19,698.98

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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.