Home / 21,961.38-32,941.80-8,813.52

Finding the Fourth Proportional to 21,961.38, 32,941.80 and 8,813.52

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Solution

The fourth proportional to 21,961.38, 32,941.80 and 8,813.52 is: 13,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.38 : 32,941.80 = 8,813.52 : x
  2. Step 2: Convert to fraction form
    21,961.38/32,941.80 = 8,813.52/x
  3. Step 3: Cross multiply
    21,961.38x = 32,941.80 × 8,813.52
  4. Step 4: Simplify right side
    21,961.38x = 290,333,213.14
  5. Step 5: Solve for x
    x = 290,333,213.14/21,961.38
  6. Step 6: Final answer
    x = 13,220.17

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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.