Home / 20,835.97-31,253.55-5,253.19

Finding the Fourth Proportional to 20,835.97, 31,253.55 and 5,253.19

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Solution

The fourth proportional to 20,835.97, 31,253.55 and 5,253.19 is: 7,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.97 : 31,253.55 = 5,253.19 : x
  2. Step 2: Convert to fraction form
    20,835.97/31,253.55 = 5,253.19/x
  3. Step 3: Cross multiply
    20,835.97x = 31,253.55 × 5,253.19
  4. Step 4: Simplify right side
    20,835.97x = 164,180,738.49
  5. Step 5: Solve for x
    x = 164,180,738.49/20,835.97
  6. Step 6: Final answer
    x = 7,879.68

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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.