Home / 17,622.63-26,431.41-5,139.30

Finding the Fourth Proportional to 17,622.63, 26,431.41 and 5,139.30

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Solution

The fourth proportional to 17,622.63, 26,431.41 and 5,139.30 is: 7,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,622.63 : 26,431.41 = 5,139.30 : x
  2. Step 2: Convert to fraction form
    17,622.63/26,431.41 = 5,139.30/x
  3. Step 3: Cross multiply
    17,622.63x = 26,431.41 × 5,139.30
  4. Step 4: Simplify right side
    17,622.63x = 135,838,945.41
  5. Step 5: Solve for x
    x = 135,838,945.41/17,622.63
  6. Step 6: Final answer
    x = 7,708.21

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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.