Home / 48,619.98-72,958.68-20,538.22

Finding the Fourth Proportional to 48,619.98, 72,958.68 and 20,538.22

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Solution

The fourth proportional to 48,619.98, 72,958.68 and 20,538.22 is: 30,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,619.98 : 72,958.68 = 20,538.22 : x
  2. Step 2: Convert to fraction form
    48,619.98/72,958.68 = 20,538.22/x
  3. Step 3: Cross multiply
    48,619.98x = 72,958.68 × 20,538.22
  4. Step 4: Simplify right side
    48,619.98x = 1,498,441,420.75
  5. Step 5: Solve for x
    x = 1,498,441,420.75/48,619.98
  6. Step 6: Final answer
    x = 30,819.46

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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.