Home / 17,118.30-25,681.53-5,431.52

Finding the Fourth Proportional to 17,118.30, 25,681.53 and 5,431.52

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Solution

The fourth proportional to 17,118.30, 25,681.53 and 5,431.52 is: 8,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,118.30 : 25,681.53 = 5,431.52 : x
  2. Step 2: Convert to fraction form
    17,118.30/25,681.53 = 5,431.52/x
  3. Step 3: Cross multiply
    17,118.30x = 25,681.53 × 5,431.52
  4. Step 4: Simplify right side
    17,118.30x = 139,489,615.42
  5. Step 5: Solve for x
    x = 139,489,615.42/17,118.30
  6. Step 6: Final answer
    x = 8,148.57

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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.