Home / 21,234.02-31,855.80-7,193.24

Finding the Fourth Proportional to 21,234.02, 31,855.80 and 7,193.24

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Solution

The fourth proportional to 21,234.02, 31,855.80 and 7,193.24 is: 10,791.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.02 : 31,855.80 = 7,193.24 : x
  2. Step 2: Convert to fraction form
    21,234.02/31,855.80 = 7,193.24/x
  3. Step 3: Cross multiply
    21,234.02x = 31,855.80 × 7,193.24
  4. Step 4: Simplify right side
    21,234.02x = 229,146,414.79
  5. Step 5: Solve for x
    x = 229,146,414.79/21,234.02
  6. Step 6: Final answer
    x = 10,791.48

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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.