Home / 38,105.90-52,585.58-21,110.11

Finding the Fourth Proportional to 38,105.90, 52,585.58 and 21,110.11

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Solution

The fourth proportional to 38,105.90, 52,585.58 and 21,110.11 is: 29,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.90 : 52,585.58 = 21,110.11 : x
  2. Step 2: Convert to fraction form
    38,105.90/52,585.58 = 21,110.11/x
  3. Step 3: Cross multiply
    38,105.90x = 52,585.58 × 21,110.11
  4. Step 4: Simplify right side
    38,105.90x = 1,110,087,378.21
  5. Step 5: Solve for x
    x = 1,110,087,378.21/38,105.90
  6. Step 6: Final answer
    x = 29,131.64

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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.