Home / 27,408.64-41,126-18,988.12

Finding the Fourth Proportional to 27,408.64, 41,126 and 18,988.12

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Solution

The fourth proportional to 27,408.64, 41,126 and 18,988.12 is: 28,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,408.64 : 41,126 = 18,988.12 : x
  2. Step 2: Convert to fraction form
    27,408.64/41,126 = 18,988.12/x
  3. Step 3: Cross multiply
    27,408.64x = 41,126 × 18,988.12
  4. Step 4: Simplify right side
    27,408.64x = 780,905,423.12
  5. Step 5: Solve for x
    x = 780,905,423.12/27,408.64
  6. Step 6: Final answer
    x = 28,491.21

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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.