Home / 20,609.01-28,441.07-11,656.33

Finding the Fourth Proportional to 20,609.01, 28,441.07 and 11,656.33

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Solution

The fourth proportional to 20,609.01, 28,441.07 and 11,656.33 is: 16,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.01 : 28,441.07 = 11,656.33 : x
  2. Step 2: Convert to fraction form
    20,609.01/28,441.07 = 11,656.33/x
  3. Step 3: Cross multiply
    20,609.01x = 28,441.07 × 11,656.33
  4. Step 4: Simplify right side
    20,609.01x = 331,518,557.36
  5. Step 5: Solve for x
    x = 331,518,557.36/20,609.01
  6. Step 6: Final answer
    x = 16,086.10

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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.