Home / 48,103.98-72,168.12-20,015.61

Finding the Fourth Proportional to 48,103.98, 72,168.12 and 20,015.61

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Solution

The fourth proportional to 48,103.98, 72,168.12 and 20,015.61 is: 30,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,103.98 : 72,168.12 = 20,015.61 : x
  2. Step 2: Convert to fraction form
    48,103.98/72,168.12 = 20,015.61/x
  3. Step 3: Cross multiply
    48,103.98x = 72,168.12 × 20,015.61
  4. Step 4: Simplify right side
    48,103.98x = 1,444,488,944.35
  5. Step 5: Solve for x
    x = 1,444,488,944.35/48,103.98
  6. Step 6: Final answer
    x = 30,028.47

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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.