Home / 30,206.15-45,311.61-8,019.53

Finding the Fourth Proportional to 30,206.15, 45,311.61 and 8,019.53

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Solution

The fourth proportional to 30,206.15, 45,311.61 and 8,019.53 is: 12,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.15 : 45,311.61 = 8,019.53 : x
  2. Step 2: Convert to fraction form
    30,206.15/45,311.61 = 8,019.53/x
  3. Step 3: Cross multiply
    30,206.15x = 45,311.61 × 8,019.53
  4. Step 4: Simplify right side
    30,206.15x = 363,377,815.74
  5. Step 5: Solve for x
    x = 363,377,815.74/30,206.15
  6. Step 6: Final answer
    x = 12,029.93

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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.