Home / 28,624.48-39,516.64-22,236.80

Finding the Fourth Proportional to 28,624.48, 39,516.64 and 22,236.80

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Solution

The fourth proportional to 28,624.48, 39,516.64 and 22,236.80 is: 30,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,624.48 : 39,516.64 = 22,236.80 : x
  2. Step 2: Convert to fraction form
    28,624.48/39,516.64 = 22,236.80/x
  3. Step 3: Cross multiply
    28,624.48x = 39,516.64 × 22,236.80
  4. Step 4: Simplify right side
    28,624.48x = 878,723,620.35
  5. Step 5: Solve for x
    x = 878,723,620.35/28,624.48
  6. Step 6: Final answer
    x = 30,698.33

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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.