Home / 39,949.20-59,923.80-12,243.60

Finding the Fourth Proportional to 39,949.20, 59,923.80 and 12,243.60

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Solution

The fourth proportional to 39,949.20, 59,923.80 and 12,243.60 is: 18,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,949.20 : 59,923.80 = 12,243.60 : x
  2. Step 2: Convert to fraction form
    39,949.20/59,923.80 = 12,243.60/x
  3. Step 3: Cross multiply
    39,949.20x = 59,923.80 × 12,243.60
  4. Step 4: Simplify right side
    39,949.20x = 733,683,037.68
  5. Step 5: Solve for x
    x = 733,683,037.68/39,949.20
  6. Step 6: Final answer
    x = 18,365.40

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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.