Home / 20,588.72-30,839.34-11,801.84

Finding the Fourth Proportional to 20,588.72, 30,839.34 and 11,801.84

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Solution

The fourth proportional to 20,588.72, 30,839.34 and 11,801.84 is: 17,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.72 : 30,839.34 = 11,801.84 : x
  2. Step 2: Convert to fraction form
    20,588.72/30,839.34 = 11,801.84/x
  3. Step 3: Cross multiply
    20,588.72x = 30,839.34 × 11,801.84
  4. Step 4: Simplify right side
    20,588.72x = 363,960,956.39
  5. Step 5: Solve for x
    x = 363,960,956.39/20,588.72
  6. Step 6: Final answer
    x = 17,677.69

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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.