Home / 20,755.76-31,133.37-5,173.52

Finding the Fourth Proportional to 20,755.76, 31,133.37 and 5,173.52

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Solution

The fourth proportional to 20,755.76, 31,133.37 and 5,173.52 is: 7,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.76 : 31,133.37 = 5,173.52 : x
  2. Step 2: Convert to fraction form
    20,755.76/31,133.37 = 5,173.52/x
  3. Step 3: Cross multiply
    20,755.76x = 31,133.37 × 5,173.52
  4. Step 4: Simplify right side
    20,755.76x = 161,069,112.36
  5. Step 5: Solve for x
    x = 161,069,112.36/20,755.76
  6. Step 6: Final answer
    x = 7,760.21

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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.