Home / 21,150.04-31,725.06-7,299.04

Finding the Fourth Proportional to 21,150.04, 31,725.06 and 7,299.04

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Solution

The fourth proportional to 21,150.04, 31,725.06 and 7,299.04 is: 10,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.04 : 31,725.06 = 7,299.04 : x
  2. Step 2: Convert to fraction form
    21,150.04/31,725.06 = 7,299.04/x
  3. Step 3: Cross multiply
    21,150.04x = 31,725.06 × 7,299.04
  4. Step 4: Simplify right side
    21,150.04x = 231,562,481.94
  5. Step 5: Solve for x
    x = 231,562,481.94/21,150.04
  6. Step 6: Final answer
    x = 10,948.56

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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.