Home / 21,869.96-32,805.09-9,379.44

Finding the Fourth Proportional to 21,869.96, 32,805.09 and 9,379.44

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Solution

The fourth proportional to 21,869.96, 32,805.09 and 9,379.44 is: 14,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.96 : 32,805.09 = 9,379.44 : x
  2. Step 2: Convert to fraction form
    21,869.96/32,805.09 = 9,379.44/x
  3. Step 3: Cross multiply
    21,869.96x = 32,805.09 × 9,379.44
  4. Step 4: Simplify right side
    21,869.96x = 307,693,373.35
  5. Step 5: Solve for x
    x = 307,693,373.35/21,869.96
  6. Step 6: Final answer
    x = 14,069.23

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1.5x scale

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.