Home / 20,954.66-28,916.54-11,522.61

Finding the Fourth Proportional to 20,954.66, 28,916.54 and 11,522.61

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Solution

The fourth proportional to 20,954.66, 28,916.54 and 11,522.61 is: 15,900.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.66 : 28,916.54 = 11,522.61 : x
  2. Step 2: Convert to fraction form
    20,954.66/28,916.54 = 11,522.61/x
  3. Step 3: Cross multiply
    20,954.66x = 28,916.54 × 11,522.61
  4. Step 4: Simplify right side
    20,954.66x = 333,193,955.36
  5. Step 5: Solve for x
    x = 333,193,955.36/20,954.66
  6. Step 6: Final answer
    x = 15,900.71

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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.