Home / 21,095.82-29,112.12-11,664.36

Finding the Fourth Proportional to 21,095.82, 29,112.12 and 11,664.36

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Solution

The fourth proportional to 21,095.82, 29,112.12 and 11,664.36 is: 16,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.82 : 29,112.12 = 11,664.36 : x
  2. Step 2: Convert to fraction form
    21,095.82/29,112.12 = 11,664.36/x
  3. Step 3: Cross multiply
    21,095.82x = 29,112.12 × 11,664.36
  4. Step 4: Simplify right side
    21,095.82x = 339,574,248.04
  5. Step 5: Solve for x
    x = 339,574,248.04/21,095.82
  6. Step 6: Final answer
    x = 16,096.76

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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.