Home / 25,719.42-38,591.64-11,688.60

Finding the Fourth Proportional to 25,719.42, 38,591.64 and 11,688.60

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Solution

The fourth proportional to 25,719.42, 38,591.64 and 11,688.60 is: 17,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.42 : 38,591.64 = 11,688.60 : x
  2. Step 2: Convert to fraction form
    25,719.42/38,591.64 = 11,688.60/x
  3. Step 3: Cross multiply
    25,719.42x = 38,591.64 × 11,688.60
  4. Step 4: Simplify right side
    25,719.42x = 451,082,243.30
  5. Step 5: Solve for x
    x = 451,082,243.30/25,719.42
  6. Step 6: Final answer
    x = 17,538.59

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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.