Home / 19,927.80-29,867.40-8,822.70

Finding the Fourth Proportional to 19,927.80, 29,867.40 and 8,822.70

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Solution

The fourth proportional to 19,927.80, 29,867.40 and 8,822.70 is: 13,223.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.80 : 29,867.40 = 8,822.70 : x
  2. Step 2: Convert to fraction form
    19,927.80/29,867.40 = 8,822.70/x
  3. Step 3: Cross multiply
    19,927.80x = 29,867.40 × 8,822.70
  4. Step 4: Simplify right side
    19,927.80x = 263,511,109.98
  5. Step 5: Solve for x
    x = 263,511,109.98/19,927.80
  6. Step 6: Final answer
    x = 13,223.29

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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.