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Finding the Fourth Proportional to 25,285, 37,910.22 and 15,427.72

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Solution

The fourth proportional to 25,285, 37,910.22 and 15,427.72 is: 23,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,285 : 37,910.22 = 15,427.72 : x
  2. Step 2: Convert to fraction form
    25,285/37,910.22 = 15,427.72/x
  3. Step 3: Cross multiply
    25,285x = 37,910.22 × 15,427.72
  4. Step 4: Simplify right side
    25,285x = 584,868,259.30
  5. Step 5: Solve for x
    x = 584,868,259.30/25,285
  6. Step 6: Final answer
    x = 23,131.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.