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Finding the Fourth Proportional to 17,100.66, 25,507.31 and 15,525.78

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Solution

The fourth proportional to 17,100.66, 25,507.31 and 15,525.78 is: 23,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,100.66 : 25,507.31 = 15,525.78 : x
  2. Step 2: Convert to fraction form
    17,100.66/25,507.31 = 15,525.78/x
  3. Step 3: Cross multiply
    17,100.66x = 25,507.31 × 15,525.78
  4. Step 4: Simplify right side
    17,100.66x = 396,020,805.82
  5. Step 5: Solve for x
    x = 396,020,805.82/17,100.66
  6. Step 6: Final answer
    x = 23,158.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.