Home / 19,065.60-28,593.99-7,220.75

Finding the Fourth Proportional to 19,065.60, 28,593.99 and 7,220.75

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Solution

The fourth proportional to 19,065.60, 28,593.99 and 7,220.75 is: 10,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.60 : 28,593.99 = 7,220.75 : x
  2. Step 2: Convert to fraction form
    19,065.60/28,593.99 = 7,220.75/x
  3. Step 3: Cross multiply
    19,065.60x = 28,593.99 × 7,220.75
  4. Step 4: Simplify right side
    19,065.60x = 206,469,910.32
  5. Step 5: Solve for x
    x = 206,469,910.32/19,065.60
  6. Step 6: Final answer
    x = 10,829.45

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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.