Home / 19,914.51-29,853.30-8,815.28

Finding the Fourth Proportional to 19,914.51, 29,853.30 and 8,815.28

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Solution

The fourth proportional to 19,914.51, 29,853.30 and 8,815.28 is: 13,214.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,914.51 : 29,853.30 = 8,815.28 : x
  2. Step 2: Convert to fraction form
    19,914.51/29,853.30 = 8,815.28/x
  3. Step 3: Cross multiply
    19,914.51x = 29,853.30 × 8,815.28
  4. Step 4: Simplify right side
    19,914.51x = 263,165,198.42
  5. Step 5: Solve for x
    x = 263,165,198.42/19,914.51
  6. Step 6: Final answer
    x = 13,214.75

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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.