Home / 17,608.20-26,354.70-13,691.40

Finding the Fourth Proportional to 17,608.20, 26,354.70 and 13,691.40

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Solution

The fourth proportional to 17,608.20, 26,354.70 and 13,691.40 is: 20,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,608.20 : 26,354.70 = 13,691.40 : x
  2. Step 2: Convert to fraction form
    17,608.20/26,354.70 = 13,691.40/x
  3. Step 3: Cross multiply
    17,608.20x = 26,354.70 × 13,691.40
  4. Step 4: Simplify right side
    17,608.20x = 360,832,739.58
  5. Step 5: Solve for x
    x = 360,832,739.58/17,608.20
  6. Step 6: Final answer
    x = 20,492.31

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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.