Home / 17,419.68-26,129.28-4,271.88

Finding the Fourth Proportional to 17,419.68, 26,129.28 and 4,271.88

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Solution

The fourth proportional to 17,419.68, 26,129.28 and 4,271.88 is: 6,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,419.68 : 26,129.28 = 4,271.88 : x
  2. Step 2: Convert to fraction form
    17,419.68/26,129.28 = 4,271.88/x
  3. Step 3: Cross multiply
    17,419.68x = 26,129.28 × 4,271.88
  4. Step 4: Simplify right side
    17,419.68x = 111,621,148.65
  5. Step 5: Solve for x
    x = 111,621,148.65/17,419.68
  6. Step 6: Final answer
    x = 6,407.76

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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.