Home / 43,318.17-64,979.82-12,153.42

Finding the Fourth Proportional to 43,318.17, 64,979.82 and 12,153.42

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Solution

The fourth proportional to 43,318.17, 64,979.82 and 12,153.42 is: 18,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,318.17 : 64,979.82 = 12,153.42 : x
  2. Step 2: Convert to fraction form
    43,318.17/64,979.82 = 12,153.42/x
  3. Step 3: Cross multiply
    43,318.17x = 64,979.82 × 12,153.42
  4. Step 4: Simplify right side
    43,318.17x = 789,727,043.98
  5. Step 5: Solve for x
    x = 789,727,043.98/43,318.17
  6. Step 6: Final answer
    x = 18,230.85

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1.5x scale

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.