Home / 17,419.43-26,129.64-4,271.79

Finding the Fourth Proportional to 17,419.43, 26,129.64 and 4,271.79

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Solution

The fourth proportional to 17,419.43, 26,129.64 and 4,271.79 is: 6,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,419.43 : 26,129.64 = 4,271.79 : x
  2. Step 2: Convert to fraction form
    17,419.43/26,129.64 = 4,271.79/x
  3. Step 3: Cross multiply
    17,419.43x = 26,129.64 × 4,271.79
  4. Step 4: Simplify right side
    17,419.43x = 111,620,334.86
  5. Step 5: Solve for x
    x = 111,620,334.86/17,419.43
  6. Step 6: Final answer
    x = 6,407.81

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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.