Home / 19,890.77-29,836.50-6,743.49

Finding the Fourth Proportional to 19,890.77, 29,836.50 and 6,743.49

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Solution

The fourth proportional to 19,890.77, 29,836.50 and 6,743.49 is: 10,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.77 : 29,836.50 = 6,743.49 : x
  2. Step 2: Convert to fraction form
    19,890.77/29,836.50 = 6,743.49/x
  3. Step 3: Cross multiply
    19,890.77x = 29,836.50 × 6,743.49
  4. Step 4: Simplify right side
    19,890.77x = 201,202,040.14
  5. Step 5: Solve for x
    x = 201,202,040.14/19,890.77
  6. Step 6: Final answer
    x = 10,115.35

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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.