Home / 21,175.19-29,221.03-11,744.63

Finding the Fourth Proportional to 21,175.19, 29,221.03 and 11,744.63

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Solution

The fourth proportional to 21,175.19, 29,221.03 and 11,744.63 is: 16,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.19 : 29,221.03 = 11,744.63 : x
  2. Step 2: Convert to fraction form
    21,175.19/29,221.03 = 11,744.63/x
  3. Step 3: Cross multiply
    21,175.19x = 29,221.03 × 11,744.63
  4. Step 4: Simplify right side
    21,175.19x = 343,190,185.57
  5. Step 5: Solve for x
    x = 343,190,185.57/21,175.19
  6. Step 6: Final answer
    x = 16,207.18

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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.