Home / 48,678.15-73,022.35-20,211.87

Finding the Fourth Proportional to 48,678.15, 73,022.35 and 20,211.87

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Solution

The fourth proportional to 48,678.15, 73,022.35 and 20,211.87 is: 30,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.15 : 73,022.35 = 20,211.87 : x
  2. Step 2: Convert to fraction form
    48,678.15/73,022.35 = 20,211.87/x
  3. Step 3: Cross multiply
    48,678.15x = 73,022.35 × 20,211.87
  4. Step 4: Simplify right side
    48,678.15x = 1,475,918,245.29
  5. Step 5: Solve for x
    x = 1,475,918,245.29/48,678.15
  6. Step 6: Final answer
    x = 30,319.93

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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.