Home / 26,898-37,120.20-15,719.76

Finding the Fourth Proportional to 26,898, 37,120.20 and 15,719.76

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Solution

The fourth proportional to 26,898, 37,120.20 and 15,719.76 is: 21,693.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,898 : 37,120.20 = 15,719.76 : x
  2. Step 2: Convert to fraction form
    26,898/37,120.20 = 15,719.76/x
  3. Step 3: Cross multiply
    26,898x = 37,120.20 × 15,719.76
  4. Step 4: Simplify right side
    26,898x = 583,520,635.15
  5. Step 5: Solve for x
    x = 583,520,635.15/26,898
  6. Step 6: Final answer
    x = 21,693.83

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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.