Home / 29,516.68-40,747.78-18,772.36

Finding the Fourth Proportional to 29,516.68, 40,747.78 and 18,772.36

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Solution

The fourth proportional to 29,516.68, 40,747.78 and 18,772.36 is: 25,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,516.68 : 40,747.78 = 18,772.36 : x
  2. Step 2: Convert to fraction form
    29,516.68/40,747.78 = 18,772.36/x
  3. Step 3: Cross multiply
    29,516.68x = 40,747.78 × 18,772.36
  4. Step 4: Simplify right side
    29,516.68x = 764,931,995.36
  5. Step 5: Solve for x
    x = 764,931,995.36/29,516.68
  6. Step 6: Final answer
    x = 25,915.25

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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.