Home / 29,310.05-40,448.06-15,881.41

Finding the Fourth Proportional to 29,310.05, 40,448.06 and 15,881.41

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Solution

The fourth proportional to 29,310.05, 40,448.06 and 15,881.41 is: 21,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,310.05 : 40,448.06 = 15,881.41 : x
  2. Step 2: Convert to fraction form
    29,310.05/40,448.06 = 15,881.41/x
  3. Step 3: Cross multiply
    29,310.05x = 40,448.06 × 15,881.41
  4. Step 4: Simplify right side
    29,310.05x = 642,371,942.92
  5. Step 5: Solve for x
    x = 642,371,942.92/29,310.05
  6. Step 6: Final answer
    x = 21,916.44

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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.