Home / 27,173.48-40,700-20,887.20

Finding the Fourth Proportional to 27,173.48, 40,700 and 20,887.20

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Solution

The fourth proportional to 27,173.48, 40,700 and 20,887.20 is: 31,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,173.48 : 40,700 = 20,887.20 : x
  2. Step 2: Convert to fraction form
    27,173.48/40,700 = 20,887.20/x
  3. Step 3: Cross multiply
    27,173.48x = 40,700 × 20,887.20
  4. Step 4: Simplify right side
    27,173.48x = 850,109,040
  5. Step 5: Solve for x
    x = 850,109,040/27,173.48
  6. Step 6: Final answer
    x = 31,284.51

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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.