Home / 30,839.48-42,553.87-18,087.85

Finding the Fourth Proportional to 30,839.48, 42,553.87 and 18,087.85

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Solution

The fourth proportional to 30,839.48, 42,553.87 and 18,087.85 is: 24,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.48 : 42,553.87 = 18,087.85 : x
  2. Step 2: Convert to fraction form
    30,839.48/42,553.87 = 18,087.85/x
  3. Step 3: Cross multiply
    30,839.48x = 42,553.87 × 18,087.85
  4. Step 4: Simplify right side
    30,839.48x = 769,708,025.45
  5. Step 5: Solve for x
    x = 769,708,025.45/30,839.48
  6. Step 6: Final answer
    x = 24,958.53

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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.