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Finding the Fourth Proportional to 32,877.84, 45,338.76 and 20,936.88

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Solution

The fourth proportional to 32,877.84, 45,338.76 and 20,936.88 is: 28,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,877.84 : 45,338.76 = 20,936.88 : x
  2. Step 2: Convert to fraction form
    32,877.84/45,338.76 = 20,936.88/x
  3. Step 3: Cross multiply
    32,877.84x = 45,338.76 × 20,936.88
  4. Step 4: Simplify right side
    32,877.84x = 949,252,177.47
  5. Step 5: Solve for x
    x = 949,252,177.47/32,877.84
  6. Step 6: Final answer
    x = 28,872.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.