Home / 39,849.12-59,773.44-12,147.12

Finding the Fourth Proportional to 39,849.12, 59,773.44 and 12,147.12

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Solution

The fourth proportional to 39,849.12, 59,773.44 and 12,147.12 is: 18,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,849.12 : 59,773.44 = 12,147.12 : x
  2. Step 2: Convert to fraction form
    39,849.12/59,773.44 = 12,147.12/x
  3. Step 3: Cross multiply
    39,849.12x = 59,773.44 × 12,147.12
  4. Step 4: Simplify right side
    39,849.12x = 726,075,148.49
  5. Step 5: Solve for x
    x = 726,075,148.49/39,849.12
  6. Step 6: Final answer
    x = 18,220.61

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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.