Home / 20,891.19-31,338.78-6,100.23

Finding the Fourth Proportional to 20,891.19, 31,338.78 and 6,100.23

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Solution

The fourth proportional to 20,891.19, 31,338.78 and 6,100.23 is: 9,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,891.19 : 31,338.78 = 6,100.23 : x
  2. Step 2: Convert to fraction form
    20,891.19/31,338.78 = 6,100.23/x
  3. Step 3: Cross multiply
    20,891.19x = 31,338.78 × 6,100.23
  4. Step 4: Simplify right side
    20,891.19x = 191,173,765.92
  5. Step 5: Solve for x
    x = 191,173,765.92/20,891.19
  6. Step 6: Final answer
    x = 9,150.93

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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.