Home / 32,421.45-48,634.68-12,440.50

Finding the Fourth Proportional to 32,421.45, 48,634.68 and 12,440.50

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Solution

The fourth proportional to 32,421.45, 48,634.68 and 12,440.50 is: 18,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,421.45 : 48,634.68 = 12,440.50 : x
  2. Step 2: Convert to fraction form
    32,421.45/48,634.68 = 12,440.50/x
  3. Step 3: Cross multiply
    32,421.45x = 48,634.68 × 12,440.50
  4. Step 4: Simplify right side
    32,421.45x = 605,039,736.54
  5. Step 5: Solve for x
    x = 605,039,736.54/32,421.45
  6. Step 6: Final answer
    x = 18,661.71

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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.