Home / 21,759.40-32,641.38-9,280.75

Finding the Fourth Proportional to 21,759.40, 32,641.38 and 9,280.75

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Solution

The fourth proportional to 21,759.40, 32,641.38 and 9,280.75 is: 13,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,759.40 : 32,641.38 = 9,280.75 : x
  2. Step 2: Convert to fraction form
    21,759.40/32,641.38 = 9,280.75/x
  3. Step 3: Cross multiply
    21,759.40x = 32,641.38 × 9,280.75
  4. Step 4: Simplify right side
    21,759.40x = 302,936,487.44
  5. Step 5: Solve for x
    x = 302,936,487.44/21,759.40
  6. Step 6: Final answer
    x = 13,922.10

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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.