Home / 21,706.06-29,943.12-13,734.58

Finding the Fourth Proportional to 21,706.06, 29,943.12 and 13,734.58

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Solution

The fourth proportional to 21,706.06, 29,943.12 and 13,734.58 is: 18,946.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,706.06 : 29,943.12 = 13,734.58 : x
  2. Step 2: Convert to fraction form
    21,706.06/29,943.12 = 13,734.58/x
  3. Step 3: Cross multiply
    21,706.06x = 29,943.12 × 13,734.58
  4. Step 4: Simplify right side
    21,706.06x = 411,256,177.09
  5. Step 5: Solve for x
    x = 411,256,177.09/21,706.06
  6. Step 6: Final answer
    x = 18,946.61

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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.