Home / 17,421.12-26,091.36-13,697.28

Finding the Fourth Proportional to 17,421.12, 26,091.36 and 13,697.28

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Solution

The fourth proportional to 17,421.12, 26,091.36 and 13,697.28 is: 20,514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,421.12 : 26,091.36 = 13,697.28 : x
  2. Step 2: Convert to fraction form
    17,421.12/26,091.36 = 13,697.28/x
  3. Step 3: Cross multiply
    17,421.12x = 26,091.36 × 13,697.28
  4. Step 4: Simplify right side
    17,421.12x = 357,380,663.50
  5. Step 5: Solve for x
    x = 357,380,663.50/17,421.12
  6. Step 6: Final answer
    x = 20,514.22

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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.