Home / 26,857.76-40,280.57-10,211.86

Finding the Fourth Proportional to 26,857.76, 40,280.57 and 10,211.86

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Solution

The fourth proportional to 26,857.76, 40,280.57 and 10,211.86 is: 15,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,857.76 : 40,280.57 = 10,211.86 : x
  2. Step 2: Convert to fraction form
    26,857.76/40,280.57 = 10,211.86/x
  3. Step 3: Cross multiply
    26,857.76x = 40,280.57 × 10,211.86
  4. Step 4: Simplify right side
    26,857.76x = 411,339,289.10
  5. Step 5: Solve for x
    x = 411,339,289.10/26,857.76
  6. Step 6: Final answer
    x = 15,315.47

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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.