Home / 31,428.63-43,372.17-17,089.20

Finding the Fourth Proportional to 31,428.63, 43,372.17 and 17,089.20

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Solution

The fourth proportional to 31,428.63, 43,372.17 and 17,089.20 is: 23,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.63 : 43,372.17 = 17,089.20 : x
  2. Step 2: Convert to fraction form
    31,428.63/43,372.17 = 17,089.20/x
  3. Step 3: Cross multiply
    31,428.63x = 43,372.17 × 17,089.20
  4. Step 4: Simplify right side
    31,428.63x = 741,195,687.56
  5. Step 5: Solve for x
    x = 741,195,687.56/31,428.63
  6. Step 6: Final answer
    x = 23,583.46

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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.