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Finding the Fourth Proportional to 18,150, 24,969.24 and 17,372.40

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Solution

The fourth proportional to 18,150, 24,969.24 and 17,372.40 is: 23,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150 : 24,969.24 = 17,372.40 : x
  2. Step 2: Convert to fraction form
    18,150/24,969.24 = 17,372.40/x
  3. Step 3: Cross multiply
    18,150x = 24,969.24 × 17,372.40
  4. Step 4: Simplify right side
    18,150x = 433,775,624.98
  5. Step 5: Solve for x
    x = 433,775,624.98/18,150
  6. Step 6: Final answer
    x = 23,899.48

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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.