Home / 26,531.15-39,771.81-8,988.57

Finding the Fourth Proportional to 26,531.15, 39,771.81 and 8,988.57

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Solution

The fourth proportional to 26,531.15, 39,771.81 and 8,988.57 is: 13,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.15 : 39,771.81 = 8,988.57 : x
  2. Step 2: Convert to fraction form
    26,531.15/39,771.81 = 8,988.57/x
  3. Step 3: Cross multiply
    26,531.15x = 39,771.81 × 8,988.57
  4. Step 4: Simplify right side
    26,531.15x = 357,491,698.21
  5. Step 5: Solve for x
    x = 357,491,698.21/26,531.15
  6. Step 6: Final answer
    x = 13,474.42

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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.