Home / 21,095.51-29,111.81-11,664

Finding the Fourth Proportional to 21,095.51, 29,111.81 and 11,664

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Solution

The fourth proportional to 21,095.51, 29,111.81 and 11,664 is: 16,096.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.51 : 29,111.81 = 11,664 : x
  2. Step 2: Convert to fraction form
    21,095.51/29,111.81 = 11,664/x
  3. Step 3: Cross multiply
    21,095.51x = 29,111.81 × 11,664
  4. Step 4: Simplify right side
    21,095.51x = 339,560,093.52
  5. Step 5: Solve for x
    x = 339,560,093.52/21,095.51
  6. Step 6: Final answer
    x = 16,096.32

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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.