Home / 20,883.20-31,324.80-5,300.24

Finding the Fourth Proportional to 20,883.20, 31,324.80 and 5,300.24

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Solution

The fourth proportional to 20,883.20, 31,324.80 and 5,300.24 is: 7,950.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.20 : 31,324.80 = 5,300.24 : x
  2. Step 2: Convert to fraction form
    20,883.20/31,324.80 = 5,300.24/x
  3. Step 3: Cross multiply
    20,883.20x = 31,324.80 × 5,300.24
  4. Step 4: Simplify right side
    20,883.20x = 166,028,957.95
  5. Step 5: Solve for x
    x = 166,028,957.95/20,883.20
  6. Step 6: Final answer
    x = 7,950.36

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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.