Home / 25,213.68-34,797.60-15,785.28

Finding the Fourth Proportional to 25,213.68, 34,797.60 and 15,785.28

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Solution

The fourth proportional to 25,213.68, 34,797.60 and 15,785.28 is: 21,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,213.68 : 34,797.60 = 15,785.28 : x
  2. Step 2: Convert to fraction form
    25,213.68/34,797.60 = 15,785.28/x
  3. Step 3: Cross multiply
    25,213.68x = 34,797.60 × 15,785.28
  4. Step 4: Simplify right side
    25,213.68x = 549,289,859.33
  5. Step 5: Solve for x
    x = 549,289,859.33/25,213.68
  6. Step 6: Final answer
    x = 21,785.39

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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.