Home / 30,289.68-45,441.81-12,764.52

Finding the Fourth Proportional to 30,289.68, 45,441.81 and 12,764.52

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Solution

The fourth proportional to 30,289.68, 45,441.81 and 12,764.52 is: 19,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.68 : 45,441.81 = 12,764.52 : x
  2. Step 2: Convert to fraction form
    30,289.68/45,441.81 = 12,764.52/x
  3. Step 3: Cross multiply
    30,289.68x = 45,441.81 × 12,764.52
  4. Step 4: Simplify right side
    30,289.68x = 580,042,892.58
  5. Step 5: Solve for x
    x = 580,042,892.58/30,289.68
  6. Step 6: Final answer
    x = 19,149.85

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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.