Home / 38,120.13-52,605.78-21,353.13

Finding the Fourth Proportional to 38,120.13, 52,605.78 and 21,353.13

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Solution

The fourth proportional to 38,120.13, 52,605.78 and 21,353.13 is: 29,467.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.13 : 52,605.78 = 21,353.13 : x
  2. Step 2: Convert to fraction form
    38,120.13/52,605.78 = 21,353.13/x
  3. Step 3: Cross multiply
    38,120.13x = 52,605.78 × 21,353.13
  4. Step 4: Simplify right side
    38,120.13x = 1,123,298,059.09
  5. Step 5: Solve for x
    x = 1,123,298,059.09/38,120.13
  6. Step 6: Final answer
    x = 29,467.32

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Half scale
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Double scale
Find fourth proportional to 38,121.13, 52,607.16 and 21,354.13
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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.