Home / 13,302.71-19,957.20-3,942.81

Finding the Fourth Proportional to 13,302.71, 19,957.20 and 3,942.81

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Solution

The fourth proportional to 13,302.71, 19,957.20 and 3,942.81 is: 5,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.71 : 19,957.20 = 3,942.81 : x
  2. Step 2: Convert to fraction form
    13,302.71/19,957.20 = 3,942.81/x
  3. Step 3: Cross multiply
    13,302.71x = 19,957.20 × 3,942.81
  4. Step 4: Simplify right side
    13,302.71x = 78,687,387.98
  5. Step 5: Solve for x
    x = 78,687,387.98/13,302.71
  6. Step 6: Final answer
    x = 5,915.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.