Home / 21,003.58-31,505.27-6,212.57

Finding the Fourth Proportional to 21,003.58, 31,505.27 and 6,212.57

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Solution

The fourth proportional to 21,003.58, 31,505.27 and 6,212.57 is: 9,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.58 : 31,505.27 = 6,212.57 : x
  2. Step 2: Convert to fraction form
    21,003.58/31,505.27 = 6,212.57/x
  3. Step 3: Cross multiply
    21,003.58x = 31,505.27 × 6,212.57
  4. Step 4: Simplify right side
    21,003.58x = 195,728,742.94
  5. Step 5: Solve for x
    x = 195,728,742.94/21,003.58
  6. Step 6: Final answer
    x = 9,318.83

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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.