Home / 21,299.10-31,946.06-5,717.94

Finding the Fourth Proportional to 21,299.10, 31,946.06 and 5,717.94

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Solution

The fourth proportional to 21,299.10, 31,946.06 and 5,717.94 is: 8,576.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.10 : 31,946.06 = 5,717.94 : x
  2. Step 2: Convert to fraction form
    21,299.10/31,946.06 = 5,717.94/x
  3. Step 3: Cross multiply
    21,299.10x = 31,946.06 × 5,717.94
  4. Step 4: Simplify right side
    21,299.10x = 182,665,654.32
  5. Step 5: Solve for x
    x = 182,665,654.32/21,299.10
  6. Step 6: Final answer
    x = 8,576.21

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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.