Home / 19,928.69-29,895.05-6,781.98

Finding the Fourth Proportional to 19,928.69, 29,895.05 and 6,781.98

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Solution

The fourth proportional to 19,928.69, 29,895.05 and 6,781.98 is: 10,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.69 : 29,895.05 = 6,781.98 : x
  2. Step 2: Convert to fraction form
    19,928.69/29,895.05 = 6,781.98/x
  3. Step 3: Cross multiply
    19,928.69x = 29,895.05 × 6,781.98
  4. Step 4: Simplify right side
    19,928.69x = 202,747,648.15
  5. Step 5: Solve for x
    x = 202,747,648.15/19,928.69
  6. Step 6: Final answer
    x = 10,173.66

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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.