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Finding the Fourth Proportional to 21,999.87, 32,999.76 and 6,204.87

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Solution

The fourth proportional to 21,999.87, 32,999.76 and 6,204.87 is: 9,307.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,999.87 : 32,999.76 = 6,204.87 : x
  2. Step 2: Convert to fraction form
    21,999.87/32,999.76 = 6,204.87/x
  3. Step 3: Cross multiply
    21,999.87x = 32,999.76 × 6,204.87
  4. Step 4: Simplify right side
    21,999.87x = 204,759,220.83
  5. Step 5: Solve for x
    x = 204,759,220.83/21,999.87
  6. Step 6: Final answer
    x = 9,307.29

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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.