Home / 21,231.02-31,846.84-8,084.12

Finding the Fourth Proportional to 21,231.02, 31,846.84 and 8,084.12

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Solution

The fourth proportional to 21,231.02, 31,846.84 and 8,084.12 is: 12,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231.02 : 31,846.84 = 8,084.12 : x
  2. Step 2: Convert to fraction form
    21,231.02/31,846.84 = 8,084.12/x
  3. Step 3: Cross multiply
    21,231.02x = 31,846.84 × 8,084.12
  4. Step 4: Simplify right side
    21,231.02x = 257,453,676.18
  5. Step 5: Solve for x
    x = 257,453,676.18/21,231.02
  6. Step 6: Final answer
    x = 12,126.30

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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.