Home / 21,330.52-31,997.76-5,535.52

Finding the Fourth Proportional to 21,330.52, 31,997.76 and 5,535.52

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Solution

The fourth proportional to 21,330.52, 31,997.76 and 5,535.52 is: 8,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.52 : 31,997.76 = 5,535.52 : x
  2. Step 2: Convert to fraction form
    21,330.52/31,997.76 = 5,535.52/x
  3. Step 3: Cross multiply
    21,330.52x = 31,997.76 × 5,535.52
  4. Step 4: Simplify right side
    21,330.52x = 177,124,240.44
  5. Step 5: Solve for x
    x = 177,124,240.44/21,330.52
  6. Step 6: Final answer
    x = 8,303.79

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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.