Home / 20,665.24-28,469.82-14,366.68

Finding the Fourth Proportional to 20,665.24, 28,469.82 and 14,366.68

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Solution

The fourth proportional to 20,665.24, 28,469.82 and 14,366.68 is: 19,792.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665.24 : 28,469.82 = 14,366.68 : x
  2. Step 2: Convert to fraction form
    20,665.24/28,469.82 = 14,366.68/x
  3. Step 3: Cross multiply
    20,665.24x = 28,469.82 × 14,366.68
  4. Step 4: Simplify right side
    20,665.24x = 409,016,793.60
  5. Step 5: Solve for x
    x = 409,016,793.60/20,665.24
  6. Step 6: Final answer
    x = 19,792.50

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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.