Home / 20,728.05-31,087.64-5,932.99

Finding the Fourth Proportional to 20,728.05, 31,087.64 and 5,932.99

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Solution

The fourth proportional to 20,728.05, 31,087.64 and 5,932.99 is: 8,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728.05 : 31,087.64 = 5,932.99 : x
  2. Step 2: Convert to fraction form
    20,728.05/31,087.64 = 5,932.99/x
  3. Step 3: Cross multiply
    20,728.05x = 31,087.64 × 5,932.99
  4. Step 4: Simplify right side
    20,728.05x = 184,442,627.58
  5. Step 5: Solve for x
    x = 184,442,627.58/20,728.05
  6. Step 6: Final answer
    x = 8,898.22

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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.