Home / 26,748.30-40,127-13,427.65

Finding the Fourth Proportional to 26,748.30, 40,127 and 13,427.65

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Solution

The fourth proportional to 26,748.30, 40,127 and 13,427.65 is: 20,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,748.30 : 40,127 = 13,427.65 : x
  2. Step 2: Convert to fraction form
    26,748.30/40,127 = 13,427.65/x
  3. Step 3: Cross multiply
    26,748.30x = 40,127 × 13,427.65
  4. Step 4: Simplify right side
    26,748.30x = 538,811,311.55
  5. Step 5: Solve for x
    x = 538,811,311.55/26,748.30
  6. Step 6: Final answer
    x = 20,143.76

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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.