Home / 31,260.72-43,131.24-20,089.20

Finding the Fourth Proportional to 31,260.72, 43,131.24 and 20,089.20

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Solution

The fourth proportional to 31,260.72, 43,131.24 and 20,089.20 is: 27,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.72 : 43,131.24 = 20,089.20 : x
  2. Step 2: Convert to fraction form
    31,260.72/43,131.24 = 20,089.20/x
  3. Step 3: Cross multiply
    31,260.72x = 43,131.24 × 20,089.20
  4. Step 4: Simplify right side
    31,260.72x = 866,472,106.61
  5. Step 5: Solve for x
    x = 866,472,106.61/31,260.72
  6. Step 6: Final answer
    x = 27,717.60

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