Home / 18,431.33-25,415.15-12,452.63

Finding the Fourth Proportional to 18,431.33, 25,415.15 and 12,452.63

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Solution

The fourth proportional to 18,431.33, 25,415.15 and 12,452.63 is: 17,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.33 : 25,415.15 = 12,452.63 : x
  2. Step 2: Convert to fraction form
    18,431.33/25,415.15 = 12,452.63/x
  3. Step 3: Cross multiply
    18,431.33x = 25,415.15 × 12,452.63
  4. Step 4: Simplify right side
    18,431.33x = 316,485,270.01
  5. Step 5: Solve for x
    x = 316,485,270.01/18,431.33
  6. Step 6: Final answer
    x = 17,171.05

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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.