Home / 18,405.72-25,414.20-14,150.18

Finding the Fourth Proportional to 18,405.72, 25,414.20 and 14,150.18

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Solution

The fourth proportional to 18,405.72, 25,414.20 and 14,150.18 is: 19,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.72 : 25,414.20 = 14,150.18 : x
  2. Step 2: Convert to fraction form
    18,405.72/25,414.20 = 14,150.18/x
  3. Step 3: Cross multiply
    18,405.72x = 25,414.20 × 14,150.18
  4. Step 4: Simplify right side
    18,405.72x = 359,615,504.56
  5. Step 5: Solve for x
    x = 359,615,504.56/18,405.72
  6. Step 6: Final answer
    x = 19,538.25

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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.