Home / 20,190.47-30,257.35-17,213.51

Finding the Fourth Proportional to 20,190.47, 30,257.35 and 17,213.51

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Solution

The fourth proportional to 20,190.47, 30,257.35 and 17,213.51 is: 25,796.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.47 : 30,257.35 = 17,213.51 : x
  2. Step 2: Convert to fraction form
    20,190.47/30,257.35 = 17,213.51/x
  3. Step 3: Cross multiply
    20,190.47x = 30,257.35 × 17,213.51
  4. Step 4: Simplify right side
    20,190.47x = 520,835,229.41
  5. Step 5: Solve for x
    x = 520,835,229.41/20,190.47
  6. Step 6: Final answer
    x = 25,796.10

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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.