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Finding the Fourth Proportional to 21,759.96, 32,639.96 and 5,965.16

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Solution

The fourth proportional to 21,759.96, 32,639.96 and 5,965.16 is: 8,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,759.96 : 32,639.96 = 5,965.16 : x
  2. Step 2: Convert to fraction form
    21,759.96/32,639.96 = 5,965.16/x
  3. Step 3: Cross multiply
    21,759.96x = 32,639.96 × 5,965.16
  4. Step 4: Simplify right side
    21,759.96x = 194,702,657.94
  5. Step 5: Solve for x
    x = 194,702,657.94/21,759.96
  6. Step 6: Final answer
    x = 8,947.75

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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.