Home / 20,556.60-30,821.13-9,448.26

Finding the Fourth Proportional to 20,556.60, 30,821.13 and 9,448.26

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Solution

The fourth proportional to 20,556.60, 30,821.13 and 9,448.26 is: 14,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.60 : 30,821.13 = 9,448.26 : x
  2. Step 2: Convert to fraction form
    20,556.60/30,821.13 = 9,448.26/x
  3. Step 3: Cross multiply
    20,556.60x = 30,821.13 × 9,448.26
  4. Step 4: Simplify right side
    20,556.60x = 291,206,049.73
  5. Step 5: Solve for x
    x = 291,206,049.73/20,556.60
  6. Step 6: Final answer
    x = 14,166.06

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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.