Home / 20,944.28-31,415.60-7,093.28

Finding the Fourth Proportional to 20,944.28, 31,415.60 and 7,093.28

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Solution

The fourth proportional to 20,944.28, 31,415.60 and 7,093.28 is: 10,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.28 : 31,415.60 = 7,093.28 : x
  2. Step 2: Convert to fraction form
    20,944.28/31,415.60 = 7,093.28/x
  3. Step 3: Cross multiply
    20,944.28x = 31,415.60 × 7,093.28
  4. Step 4: Simplify right side
    20,944.28x = 222,839,647.17
  5. Step 5: Solve for x
    x = 222,839,647.17/20,944.28
  6. Step 6: Final answer
    x = 10,639.64

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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.