Home / 26,719.61-40,115.86-13,581.27

Finding the Fourth Proportional to 26,719.61, 40,115.86 and 13,581.27

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Solution

The fourth proportional to 26,719.61, 40,115.86 and 13,581.27 is: 20,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,719.61 : 40,115.86 = 13,581.27 : x
  2. Step 2: Convert to fraction form
    26,719.61/40,115.86 = 13,581.27/x
  3. Step 3: Cross multiply
    26,719.61x = 40,115.86 × 13,581.27
  4. Step 4: Simplify right side
    26,719.61x = 544,824,291.99
  5. Step 5: Solve for x
    x = 544,824,291.99/26,719.61
  6. Step 6: Final answer
    x = 20,390.43

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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.