Home / 26,912-37,137.76-15,579.92

Finding the Fourth Proportional to 26,912, 37,137.76 and 15,579.92

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Solution

The fourth proportional to 26,912, 37,137.76 and 15,579.92 is: 21,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912 : 37,137.76 = 15,579.92 : x
  2. Step 2: Convert to fraction form
    26,912/37,137.76 = 15,579.92/x
  3. Step 3: Cross multiply
    26,912x = 37,137.76 × 15,579.92
  4. Step 4: Simplify right side
    26,912x = 578,603,329.78
  5. Step 5: Solve for x
    x = 578,603,329.78/26,912
  6. Step 6: Final answer
    x = 21,499.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.