Home / 20,880.66-31,292.73-11,027.31

Finding the Fourth Proportional to 20,880.66, 31,292.73 and 11,027.31

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Solution

The fourth proportional to 20,880.66, 31,292.73 and 11,027.31 is: 16,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,880.66 : 31,292.73 = 11,027.31 : x
  2. Step 2: Convert to fraction form
    20,880.66/31,292.73 = 11,027.31/x
  3. Step 3: Cross multiply
    20,880.66x = 31,292.73 × 11,027.31
  4. Step 4: Simplify right side
    20,880.66x = 345,074,634.46
  5. Step 5: Solve for x
    x = 345,074,634.46/20,880.66
  6. Step 6: Final answer
    x = 16,526.04

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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.