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Finding the Fourth Proportional to 21,903.84, 32,843.16 and 10,786.32

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Solution

The fourth proportional to 21,903.84, 32,843.16 and 10,786.32 is: 16,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.84 : 32,843.16 = 10,786.32 : x
  2. Step 2: Convert to fraction form
    21,903.84/32,843.16 = 10,786.32/x
  3. Step 3: Cross multiply
    21,903.84x = 32,843.16 × 10,786.32
  4. Step 4: Simplify right side
    21,903.84x = 354,256,833.57
  5. Step 5: Solve for x
    x = 354,256,833.57/21,903.84
  6. Step 6: Final answer
    x = 16,173.28

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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.