Home / 19,918.34-29,870.62-8,832.78

Finding the Fourth Proportional to 19,918.34, 29,870.62 and 8,832.78

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Solution

The fourth proportional to 19,918.34, 29,870.62 and 8,832.78 is: 13,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.34 : 29,870.62 = 8,832.78 : x
  2. Step 2: Convert to fraction form
    19,918.34/29,870.62 = 8,832.78/x
  3. Step 3: Cross multiply
    19,918.34x = 29,870.62 × 8,832.78
  4. Step 4: Simplify right side
    19,918.34x = 263,840,614.92
  5. Step 5: Solve for x
    x = 263,840,614.92/19,918.34
  6. Step 6: Final answer
    x = 13,246.11

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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.