Home / 22,601.44-31,190.79-13,647.21

Finding the Fourth Proportional to 22,601.44, 31,190.79 and 13,647.21

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Solution

The fourth proportional to 22,601.44, 31,190.79 and 13,647.21 is: 18,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,601.44 : 31,190.79 = 13,647.21 : x
  2. Step 2: Convert to fraction form
    22,601.44/31,190.79 = 13,647.21/x
  3. Step 3: Cross multiply
    22,601.44x = 31,190.79 × 13,647.21
  4. Step 4: Simplify right side
    22,601.44x = 425,667,261.20
  5. Step 5: Solve for x
    x = 425,667,261.20/22,601.44
  6. Step 6: Final answer
    x = 18,833.63

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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.