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Finding the Fourth Proportional to 25,697.73, 35,473.78 and 15,629.39

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Solution

The fourth proportional to 25,697.73, 35,473.78 and 15,629.39 is: 21,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,697.73 : 35,473.78 = 15,629.39 : x
  2. Step 2: Convert to fraction form
    25,697.73/35,473.78 = 15,629.39/x
  3. Step 3: Cross multiply
    25,697.73x = 35,473.78 × 15,629.39
  4. Step 4: Simplify right side
    25,697.73x = 554,433,542.39
  5. Step 5: Solve for x
    x = 554,433,542.39/25,697.73
  6. Step 6: Final answer
    x = 21,575.20

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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.