Home / 30,320.83-45,486.11-12,793.24

Finding the Fourth Proportional to 30,320.83, 45,486.11 and 12,793.24

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Solution

The fourth proportional to 30,320.83, 45,486.11 and 12,793.24 is: 19,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,320.83 : 45,486.11 = 12,793.24 : x
  2. Step 2: Convert to fraction form
    30,320.83/45,486.11 = 12,793.24/x
  3. Step 3: Cross multiply
    30,320.83x = 45,486.11 × 12,793.24
  4. Step 4: Simplify right side
    30,320.83x = 581,914,544.21
  5. Step 5: Solve for x
    x = 581,914,544.21/30,320.83
  6. Step 6: Final answer
    x = 19,191.91

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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.