Home / 30,251.05-41,750.16-18,318.53

Finding the Fourth Proportional to 30,251.05, 41,750.16 and 18,318.53

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Solution

The fourth proportional to 30,251.05, 41,750.16 and 18,318.53 is: 25,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.05 : 41,750.16 = 18,318.53 : x
  2. Step 2: Convert to fraction form
    30,251.05/41,750.16 = 18,318.53/x
  3. Step 3: Cross multiply
    30,251.05x = 41,750.16 × 18,318.53
  4. Step 4: Simplify right side
    30,251.05x = 764,801,558.46
  5. Step 5: Solve for x
    x = 764,801,558.46/30,251.05
  6. Step 6: Final answer
    x = 25,281.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.