Home / 20,318.60-27,977.37-17,786.54

Finding the Fourth Proportional to 20,318.60, 27,977.37 and 17,786.54

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Solution

The fourth proportional to 20,318.60, 27,977.37 and 17,786.54 is: 24,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.60 : 27,977.37 = 17,786.54 : x
  2. Step 2: Convert to fraction form
    20,318.60/27,977.37 = 17,786.54/x
  3. Step 3: Cross multiply
    20,318.60x = 27,977.37 × 17,786.54
  4. Step 4: Simplify right side
    20,318.60x = 497,620,613.84
  5. Step 5: Solve for x
    x = 497,620,613.84/20,318.60
  6. Step 6: Final answer
    x = 24,490.89

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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.