Home / 26,772.48-40,160-10,131.20

Finding the Fourth Proportional to 26,772.48, 40,160 and 10,131.20

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Solution

The fourth proportional to 26,772.48, 40,160 and 10,131.20 is: 15,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,772.48 : 40,160 = 10,131.20 : x
  2. Step 2: Convert to fraction form
    26,772.48/40,160 = 10,131.20/x
  3. Step 3: Cross multiply
    26,772.48x = 40,160 × 10,131.20
  4. Step 4: Simplify right side
    26,772.48x = 406,868,992
  5. Step 5: Solve for x
    x = 406,868,992/26,772.48
  6. Step 6: Final answer
    x = 15,197.28

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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.