Home / 21,222.24-31,833.60-6,431.04

Finding the Fourth Proportional to 21,222.24, 31,833.60 and 6,431.04

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Solution

The fourth proportional to 21,222.24, 31,833.60 and 6,431.04 is: 9,646.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.24 : 31,833.60 = 6,431.04 : x
  2. Step 2: Convert to fraction form
    21,222.24/31,833.60 = 6,431.04/x
  3. Step 3: Cross multiply
    21,222.24x = 31,833.60 × 6,431.04
  4. Step 4: Simplify right side
    21,222.24x = 204,723,154.94
  5. Step 5: Solve for x
    x = 204,723,154.94/21,222.24
  6. Step 6: Final answer
    x = 9,646.63

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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.