Home / 17,115.10-25,672.65-15,790.30

Finding the Fourth Proportional to 17,115.10, 25,672.65 and 15,790.30

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Solution

The fourth proportional to 17,115.10, 25,672.65 and 15,790.30 is: 23,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.10 : 25,672.65 = 15,790.30 : x
  2. Step 2: Convert to fraction form
    17,115.10/25,672.65 = 15,790.30/x
  3. Step 3: Cross multiply
    17,115.10x = 25,672.65 × 15,790.30
  4. Step 4: Simplify right side
    17,115.10x = 405,378,845.30
  5. Step 5: Solve for x
    x = 405,378,845.30/17,115.10
  6. Step 6: Final answer
    x = 23,685.45

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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.