Home / 43,654.71-65,427.30-18,665.40

Finding the Fourth Proportional to 43,654.71, 65,427.30 and 18,665.40

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Solution

The fourth proportional to 43,654.71, 65,427.30 and 18,665.40 is: 27,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,654.71 : 65,427.30 = 18,665.40 : x
  2. Step 2: Convert to fraction form
    43,654.71/65,427.30 = 18,665.40/x
  3. Step 3: Cross multiply
    43,654.71x = 65,427.30 × 18,665.40
  4. Step 4: Simplify right side
    43,654.71x = 1,221,226,725.42
  5. Step 5: Solve for x
    x = 1,221,226,725.42/43,654.71
  6. Step 6: Final answer
    x = 27,974.68

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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.