Home / 43,321.68-64,984.95-12,154.50

Finding the Fourth Proportional to 43,321.68, 64,984.95 and 12,154.50

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Solution

The fourth proportional to 43,321.68, 64,984.95 and 12,154.50 is: 18,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321.68 : 64,984.95 = 12,154.50 : x
  2. Step 2: Convert to fraction form
    43,321.68/64,984.95 = 12,154.50/x
  3. Step 3: Cross multiply
    43,321.68x = 64,984.95 × 12,154.50
  4. Step 4: Simplify right side
    43,321.68x = 789,859,574.78
  5. Step 5: Solve for x
    x = 789,859,574.78/43,321.68
  6. Step 6: Final answer
    x = 18,232.43

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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.