Home / 20,257.20-30,343.77-17,126.28

Finding the Fourth Proportional to 20,257.20, 30,343.77 and 17,126.28

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Solution

The fourth proportional to 20,257.20, 30,343.77 and 17,126.28 is: 25,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.20 : 30,343.77 = 17,126.28 : x
  2. Step 2: Convert to fraction form
    20,257.20/30,343.77 = 17,126.28/x
  3. Step 3: Cross multiply
    20,257.20x = 30,343.77 × 17,126.28
  4. Step 4: Simplify right side
    20,257.20x = 519,675,901.28
  5. Step 5: Solve for x
    x = 519,675,901.28/20,257.20
  6. Step 6: Final answer
    x = 25,653.89

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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.