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Finding the Fourth Proportional to 25,812, 35,615.07 and 15,197.76

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Solution

The fourth proportional to 25,812, 35,615.07 and 15,197.76 is: 20,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,812 : 35,615.07 = 15,197.76 : x
  2. Step 2: Convert to fraction form
    25,812/35,615.07 = 15,197.76/x
  3. Step 3: Cross multiply
    25,812x = 35,615.07 × 15,197.76
  4. Step 4: Simplify right side
    25,812x = 541,269,286.24
  5. Step 5: Solve for x
    x = 541,269,286.24/25,812
  6. Step 6: Final answer
    x = 20,969.68

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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.