Home / 22,909.83-31,633.60-20,662.68

Finding the Fourth Proportional to 22,909.83, 31,633.60 and 20,662.68

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Solution

The fourth proportional to 22,909.83, 31,633.60 and 20,662.68 is: 28,530.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,909.83 : 31,633.60 = 20,662.68 : x
  2. Step 2: Convert to fraction form
    22,909.83/31,633.60 = 20,662.68/x
  3. Step 3: Cross multiply
    22,909.83x = 31,633.60 × 20,662.68
  4. Step 4: Simplify right side
    22,909.83x = 653,634,954.05
  5. Step 5: Solve for x
    x = 653,634,954.05/22,909.83
  6. Step 6: Final answer
    x = 28,530.76

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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.