Home / 20,224.47-30,343.02-18,131.30

Finding the Fourth Proportional to 20,224.47, 30,343.02 and 18,131.30

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Solution

The fourth proportional to 20,224.47, 30,343.02 and 18,131.30 is: 27,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.47 : 30,343.02 = 18,131.30 : x
  2. Step 2: Convert to fraction form
    20,224.47/30,343.02 = 18,131.30/x
  3. Step 3: Cross multiply
    20,224.47x = 30,343.02 × 18,131.30
  4. Step 4: Simplify right side
    20,224.47x = 550,158,398.53
  5. Step 5: Solve for x
    x = 550,158,398.53/20,224.47
  6. Step 6: Final answer
    x = 27,202.61

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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.