Home / 20,486.04-30,753.36-17,239.56

Finding the Fourth Proportional to 20,486.04, 30,753.36 and 17,239.56

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Solution

The fourth proportional to 20,486.04, 30,753.36 and 17,239.56 is: 25,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486.04 : 30,753.36 = 17,239.56 : x
  2. Step 2: Convert to fraction form
    20,486.04/30,753.36 = 17,239.56/x
  3. Step 3: Cross multiply
    20,486.04x = 30,753.36 × 17,239.56
  4. Step 4: Simplify right side
    20,486.04x = 530,174,394.92
  5. Step 5: Solve for x
    x = 530,174,394.92/20,486.04
  6. Step 6: Final answer
    x = 25,879.79

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1.5x scale

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.