Home / 20,773.68-31,188.20-17,673.62

Finding the Fourth Proportional to 20,773.68, 31,188.20 and 17,673.62

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Solution

The fourth proportional to 20,773.68, 31,188.20 and 17,673.62 is: 26,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.68 : 31,188.20 = 17,673.62 : x
  2. Step 2: Convert to fraction form
    20,773.68/31,188.20 = 17,673.62/x
  3. Step 3: Cross multiply
    20,773.68x = 31,188.20 × 17,673.62
  4. Step 4: Simplify right side
    20,773.68x = 551,208,150.97
  5. Step 5: Solve for x
    x = 551,208,150.97/20,773.68
  6. Step 6: Final answer
    x = 26,533.97

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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.