Home / 21,227.02-31,845.30-7,186.24

Finding the Fourth Proportional to 21,227.02, 31,845.30 and 7,186.24

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Solution

The fourth proportional to 21,227.02, 31,845.30 and 7,186.24 is: 10,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.02 : 31,845.30 = 7,186.24 : x
  2. Step 2: Convert to fraction form
    21,227.02/31,845.30 = 7,186.24/x
  3. Step 3: Cross multiply
    21,227.02x = 31,845.30 × 7,186.24
  4. Step 4: Simplify right side
    21,227.02x = 228,847,968.67
  5. Step 5: Solve for x
    x = 228,847,968.67/21,227.02
  6. Step 6: Final answer
    x = 10,780.97

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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.