Home / 29,516.80-40,747.95-18,772.48

Finding the Fourth Proportional to 29,516.80, 40,747.95 and 18,772.48

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Solution

The fourth proportional to 29,516.80, 40,747.95 and 18,772.48 is: 25,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,516.80 : 40,747.95 = 18,772.48 : x
  2. Step 2: Convert to fraction form
    29,516.80/40,747.95 = 18,772.48/x
  3. Step 3: Cross multiply
    29,516.80x = 40,747.95 × 18,772.48
  4. Step 4: Simplify right side
    29,516.80x = 764,940,076.42
  5. Step 5: Solve for x
    x = 764,940,076.42/29,516.80
  6. Step 6: Final answer
    x = 25,915.41

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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.