Home / 27,839.80-41,759.10-18,539.40

Finding the Fourth Proportional to 27,839.80, 41,759.10 and 18,539.40

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Solution

The fourth proportional to 27,839.80, 41,759.10 and 18,539.40 is: 27,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,839.80 : 41,759.10 = 18,539.40 : x
  2. Step 2: Convert to fraction form
    27,839.80/41,759.10 = 18,539.40/x
  3. Step 3: Cross multiply
    27,839.80x = 41,759.10 × 18,539.40
  4. Step 4: Simplify right side
    27,839.80x = 774,188,658.54
  5. Step 5: Solve for x
    x = 774,188,658.54/27,839.80
  6. Step 6: Final answer
    x = 27,808.70

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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.