Home / 38,105.44-52,585.40-21,109.71

Finding the Fourth Proportional to 38,105.44, 52,585.40 and 21,109.71

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Solution

The fourth proportional to 38,105.44, 52,585.40 and 21,109.71 is: 29,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.44 : 52,585.40 = 21,109.71 : x
  2. Step 2: Convert to fraction form
    38,105.44/52,585.40 = 21,109.71/x
  3. Step 3: Cross multiply
    38,105.44x = 52,585.40 × 21,109.71
  4. Step 4: Simplify right side
    38,105.44x = 1,110,062,794.20
  5. Step 5: Solve for x
    x = 1,110,062,794.20/38,105.44
  6. Step 6: Final answer
    x = 29,131.35

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.