Home / 21,079.26-31,622.76-7,037.96

Finding the Fourth Proportional to 21,079.26, 31,622.76 and 7,037.96

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Solution

The fourth proportional to 21,079.26, 31,622.76 and 7,037.96 is: 10,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.26 : 31,622.76 = 7,037.96 : x
  2. Step 2: Convert to fraction form
    21,079.26/31,622.76 = 7,037.96/x
  3. Step 3: Cross multiply
    21,079.26x = 31,622.76 × 7,037.96
  4. Step 4: Simplify right side
    21,079.26x = 222,559,680.44
  5. Step 5: Solve for x
    x = 222,559,680.44/21,079.26
  6. Step 6: Final answer
    x = 10,558.23

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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.