Home / 20,203.83-30,343.41-18,558.18

Finding the Fourth Proportional to 20,203.83, 30,343.41 and 18,558.18

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Solution

The fourth proportional to 20,203.83, 30,343.41 and 18,558.18 is: 27,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.83 : 30,343.41 = 18,558.18 : x
  2. Step 2: Convert to fraction form
    20,203.83/30,343.41 = 18,558.18/x
  3. Step 3: Cross multiply
    20,203.83x = 30,343.41 × 18,558.18
  4. Step 4: Simplify right side
    20,203.83x = 563,118,464.59
  5. Step 5: Solve for x
    x = 563,118,464.59/20,203.83
  6. Step 6: Final answer
    x = 27,871.87

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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.