Home / 48,016.80-72,005.76-18,435.60

Finding the Fourth Proportional to 48,016.80, 72,005.76 and 18,435.60

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Solution

The fourth proportional to 48,016.80, 72,005.76 and 18,435.60 is: 27,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,016.80 : 72,005.76 = 18,435.60 : x
  2. Step 2: Convert to fraction form
    48,016.80/72,005.76 = 18,435.60/x
  3. Step 3: Cross multiply
    48,016.80x = 72,005.76 × 18,435.60
  4. Step 4: Simplify right side
    48,016.80x = 1,327,469,389.06
  5. Step 5: Solve for x
    x = 1,327,469,389.06/48,016.80
  6. Step 6: Final answer
    x = 27,645.94

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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.