Home / 21,199.02-31,797.06-7,160.22

Finding the Fourth Proportional to 21,199.02, 31,797.06 and 7,160.22

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Solution

The fourth proportional to 21,199.02, 31,797.06 and 7,160.22 is: 10,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.02 : 31,797.06 = 7,160.22 : x
  2. Step 2: Convert to fraction form
    21,199.02/31,797.06 = 7,160.22/x
  3. Step 3: Cross multiply
    21,199.02x = 31,797.06 × 7,160.22
  4. Step 4: Simplify right side
    21,199.02x = 227,673,944.95
  5. Step 5: Solve for x
    x = 227,673,944.95/21,199.02
  6. Step 6: Final answer
    x = 10,739.83

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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.