Home / 18,419.10-27,628.65-15,567.90

Finding the Fourth Proportional to 18,419.10, 27,628.65 and 15,567.90

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Solution

The fourth proportional to 18,419.10, 27,628.65 and 15,567.90 is: 23,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.10 : 27,628.65 = 15,567.90 : x
  2. Step 2: Convert to fraction form
    18,419.10/27,628.65 = 15,567.90/x
  3. Step 3: Cross multiply
    18,419.10x = 27,628.65 × 15,567.90
  4. Step 4: Simplify right side
    18,419.10x = 430,120,060.34
  5. Step 5: Solve for x
    x = 430,120,060.34/18,419.10
  6. Step 6: Final answer
    x = 23,351.85

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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.