Home / 25,487.21-38,187.68-15,605.86

Finding the Fourth Proportional to 25,487.21, 38,187.68 and 15,605.86

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Solution

The fourth proportional to 25,487.21, 38,187.68 and 15,605.86 is: 23,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,487.21 : 38,187.68 = 15,605.86 : x
  2. Step 2: Convert to fraction form
    25,487.21/38,187.68 = 15,605.86/x
  3. Step 3: Cross multiply
    25,487.21x = 38,187.68 × 15,605.86
  4. Step 4: Simplify right side
    25,487.21x = 595,951,318.84
  5. Step 5: Solve for x
    x = 595,951,318.84/25,487.21
  6. Step 6: Final answer
    x = 23,382.37

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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.