Home / 20,909.26-31,363.98-7,067.98

Finding the Fourth Proportional to 20,909.26, 31,363.98 and 7,067.98

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Solution

The fourth proportional to 20,909.26, 31,363.98 and 7,067.98 is: 10,602.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909.26 : 31,363.98 = 7,067.98 : x
  2. Step 2: Convert to fraction form
    20,909.26/31,363.98 = 7,067.98/x
  3. Step 3: Cross multiply
    20,909.26x = 31,363.98 × 7,067.98
  4. Step 4: Simplify right side
    20,909.26x = 221,679,983.36
  5. Step 5: Solve for x
    x = 221,679,983.36/20,909.26
  6. Step 6: Final answer
    x = 10,602.00

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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.