Home / 36,208.11-49,965.12-21,103.23

Finding the Fourth Proportional to 36,208.11, 49,965.12 and 21,103.23

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Solution

The fourth proportional to 36,208.11, 49,965.12 and 21,103.23 is: 29,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,208.11 : 49,965.12 = 21,103.23 : x
  2. Step 2: Convert to fraction form
    36,208.11/49,965.12 = 21,103.23/x
  3. Step 3: Cross multiply
    36,208.11x = 49,965.12 × 21,103.23
  4. Step 4: Simplify right side
    36,208.11x = 1,054,425,419.34
  5. Step 5: Solve for x
    x = 1,054,425,419.34/36,208.11
  6. Step 6: Final answer
    x = 29,121.25

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Half scale
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Double scale
Find fourth proportional to 36,209.11, 49,966.50 and 21,104.23
Similar ratio
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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.