Home / 19,818.14-29,736.88-8,723.43

Finding the Fourth Proportional to 19,818.14, 29,736.88 and 8,723.43

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Solution

The fourth proportional to 19,818.14, 29,736.88 and 8,723.43 is: 13,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.14 : 29,736.88 = 8,723.43 : x
  2. Step 2: Convert to fraction form
    19,818.14/29,736.88 = 8,723.43/x
  3. Step 3: Cross multiply
    19,818.14x = 29,736.88 × 8,723.43
  4. Step 4: Simplify right side
    19,818.14x = 259,407,569.29
  5. Step 5: Solve for x
    x = 259,407,569.29/19,818.14
  6. Step 6: Final answer
    x = 13,089.40

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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.