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Finding the Fourth Proportional to 21,448.95, 32,150.97 and 8,976.12

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Solution

The fourth proportional to 21,448.95, 32,150.97 and 8,976.12 is: 13,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.95 : 32,150.97 = 8,976.12 : x
  2. Step 2: Convert to fraction form
    21,448.95/32,150.97 = 8,976.12/x
  3. Step 3: Cross multiply
    21,448.95x = 32,150.97 × 8,976.12
  4. Step 4: Simplify right side
    21,448.95x = 288,590,964.84
  5. Step 5: Solve for x
    x = 288,590,964.84/21,448.95
  6. Step 6: Final answer
    x = 13,454.78

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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.