Home / 18,981.57-28,533.82-17,611.96

Finding the Fourth Proportional to 18,981.57, 28,533.82 and 17,611.96

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Solution

The fourth proportional to 18,981.57, 28,533.82 and 17,611.96 is: 26,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.57 : 28,533.82 = 17,611.96 : x
  2. Step 2: Convert to fraction form
    18,981.57/28,533.82 = 17,611.96/x
  3. Step 3: Cross multiply
    18,981.57x = 28,533.82 × 17,611.96
  4. Step 4: Simplify right side
    18,981.57x = 502,536,387.39
  5. Step 5: Solve for x
    x = 502,536,387.39/18,981.57
  6. Step 6: Final answer
    x = 26,474.97

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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.