Home / 22,745.02-31,388.21-13,186.79

Finding the Fourth Proportional to 22,745.02, 31,388.21 and 13,186.79

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Solution

The fourth proportional to 22,745.02, 31,388.21 and 13,186.79 is: 18,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.02 : 31,388.21 = 13,186.79 : x
  2. Step 2: Convert to fraction form
    22,745.02/31,388.21 = 13,186.79/x
  3. Step 3: Cross multiply
    22,745.02x = 31,388.21 × 13,186.79
  4. Step 4: Simplify right side
    22,745.02x = 413,909,733.75
  5. Step 5: Solve for x
    x = 413,909,733.75/22,745.02
  6. Step 6: Final answer
    x = 18,197.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.