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Finding the Fourth Proportional to 55,230.32, 82,836.84 and 18,294.32

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Solution

The fourth proportional to 55,230.32, 82,836.84 and 18,294.32 is: 27,438.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.32 : 82,836.84 = 18,294.32 : x
  2. Step 2: Convert to fraction form
    55,230.32/82,836.84 = 18,294.32/x
  3. Step 3: Cross multiply
    55,230.32x = 82,836.84 × 18,294.32
  4. Step 4: Simplify right side
    55,230.32x = 1,515,443,658.75
  5. Step 5: Solve for x
    x = 1,515,443,658.75/55,230.32
  6. Step 6: Final answer
    x = 27,438.62

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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.