Home / 20,755.51-31,126.89-5,960.46

Finding the Fourth Proportional to 20,755.51, 31,126.89 and 5,960.46

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Solution

The fourth proportional to 20,755.51, 31,126.89 and 5,960.46 is: 8,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.51 : 31,126.89 = 5,960.46 : x
  2. Step 2: Convert to fraction form
    20,755.51/31,126.89 = 5,960.46/x
  3. Step 3: Cross multiply
    20,755.51x = 31,126.89 × 5,960.46
  4. Step 4: Simplify right side
    20,755.51x = 185,530,582.77
  5. Step 5: Solve for x
    x = 185,530,582.77/20,755.51
  6. Step 6: Final answer
    x = 8,938.86

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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.