Home / 18,837.96-28,242.35-8,981.88

Finding the Fourth Proportional to 18,837.96, 28,242.35 and 8,981.88

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Solution

The fourth proportional to 18,837.96, 28,242.35 and 8,981.88 is: 13,465.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.96 : 28,242.35 = 8,981.88 : x
  2. Step 2: Convert to fraction form
    18,837.96/28,242.35 = 8,981.88/x
  3. Step 3: Cross multiply
    18,837.96x = 28,242.35 × 8,981.88
  4. Step 4: Simplify right side
    18,837.96x = 253,669,398.62
  5. Step 5: Solve for x
    x = 253,669,398.62/18,837.96
  6. Step 6: Final answer
    x = 13,465.86

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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.