Home / 38,105.15-52,585.09-21,110.49

Finding the Fourth Proportional to 38,105.15, 52,585.09 and 21,110.49

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Solution

The fourth proportional to 38,105.15, 52,585.09 and 21,110.49 is: 29,132.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.15 : 52,585.09 = 21,110.49 : x
  2. Step 2: Convert to fraction form
    38,105.15/52,585.09 = 21,110.49/x
  3. Step 3: Cross multiply
    38,105.15x = 52,585.09 × 21,110.49
  4. Step 4: Simplify right side
    38,105.15x = 1,110,096,911.04
  5. Step 5: Solve for x
    x = 1,110,096,911.04/38,105.15
  6. Step 6: Final answer
    x = 29,132.47

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Half scale
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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.