Home / 25,142.16-37,655.82-12,003.78

Finding the Fourth Proportional to 25,142.16, 37,655.82 and 12,003.78

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Solution

The fourth proportional to 25,142.16, 37,655.82 and 12,003.78 is: 17,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,142.16 : 37,655.82 = 12,003.78 : x
  2. Step 2: Convert to fraction form
    25,142.16/37,655.82 = 12,003.78/x
  3. Step 3: Cross multiply
    25,142.16x = 37,655.82 × 12,003.78
  4. Step 4: Simplify right side
    25,142.16x = 452,012,179.00
  5. Step 5: Solve for x
    x = 452,012,179.00/25,142.16
  6. Step 6: Final answer
    x = 17,978.26

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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.