Home / 20,327.79-27,990.05-17,795.73

Finding the Fourth Proportional to 20,327.79, 27,990.05 and 17,795.73

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Solution

The fourth proportional to 20,327.79, 27,990.05 and 17,795.73 is: 24,503.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.79 : 27,990.05 = 17,795.73 : x
  2. Step 2: Convert to fraction form
    20,327.79/27,990.05 = 17,795.73/x
  3. Step 3: Cross multiply
    20,327.79x = 27,990.05 × 17,795.73
  4. Step 4: Simplify right side
    20,327.79x = 498,103,283.51
  5. Step 5: Solve for x
    x = 498,103,283.51/20,327.79
  6. Step 6: Final answer
    x = 24,503.56

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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.