Home / 17,606.20-26,351.70-13,689.40

Finding the Fourth Proportional to 17,606.20, 26,351.70 and 13,689.40

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Solution

The fourth proportional to 17,606.20, 26,351.70 and 13,689.40 is: 20,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,606.20 : 26,351.70 = 13,689.40 : x
  2. Step 2: Convert to fraction form
    17,606.20/26,351.70 = 13,689.40/x
  3. Step 3: Cross multiply
    17,606.20x = 26,351.70 × 13,689.40
  4. Step 4: Simplify right side
    17,606.20x = 360,738,961.98
  5. Step 5: Solve for x
    x = 360,738,961.98/17,606.20
  6. Step 6: Final answer
    x = 20,489.31

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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.