Home / 17,622.15-26,430.64-5,138.82

Finding the Fourth Proportional to 17,622.15, 26,430.64 and 5,138.82

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Solution

The fourth proportional to 17,622.15, 26,430.64 and 5,138.82 is: 7,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,622.15 : 26,430.64 = 5,138.82 : x
  2. Step 2: Convert to fraction form
    17,622.15/26,430.64 = 5,138.82/x
  3. Step 3: Cross multiply
    17,622.15x = 26,430.64 × 5,138.82
  4. Step 4: Simplify right side
    17,622.15x = 135,822,301.44
  5. Step 5: Solve for x
    x = 135,822,301.44/17,622.15
  6. Step 6: Final answer
    x = 7,707.48

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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.