Home / 19,381.28-26,749.64-11,423.03

Finding the Fourth Proportional to 19,381.28, 26,749.64 and 11,423.03

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Solution

The fourth proportional to 19,381.28, 26,749.64 and 11,423.03 is: 15,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.28 : 26,749.64 = 11,423.03 : x
  2. Step 2: Convert to fraction form
    19,381.28/26,749.64 = 11,423.03/x
  3. Step 3: Cross multiply
    19,381.28x = 26,749.64 × 11,423.03
  4. Step 4: Simplify right side
    19,381.28x = 305,561,835.02
  5. Step 5: Solve for x
    x = 305,561,835.02/19,381.28
  6. Step 6: Final answer
    x = 15,765.83

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