Home / 21,095.62-29,111.12-11,664.18

Finding the Fourth Proportional to 21,095.62, 29,111.12 and 11,664.18

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Solution

The fourth proportional to 21,095.62, 29,111.12 and 11,664.18 is: 16,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.62 : 29,111.12 = 11,664.18 : x
  2. Step 2: Convert to fraction form
    21,095.62/29,111.12 = 11,664.18/x
  3. Step 3: Cross multiply
    21,095.62x = 29,111.12 × 11,664.18
  4. Step 4: Simplify right side
    21,095.62x = 339,557,343.68
  5. Step 5: Solve for x
    x = 339,557,343.68/21,095.62
  6. Step 6: Final answer
    x = 16,096.11

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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.