Home / 25,128.66-37,697.10-8,489.69

Finding the Fourth Proportional to 25,128.66, 37,697.10 and 8,489.69

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Solution

The fourth proportional to 25,128.66, 37,697.10 and 8,489.69 is: 12,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,128.66 : 37,697.10 = 8,489.69 : x
  2. Step 2: Convert to fraction form
    25,128.66/37,697.10 = 8,489.69/x
  3. Step 3: Cross multiply
    25,128.66x = 37,697.10 × 8,489.69
  4. Step 4: Simplify right side
    25,128.66x = 320,036,692.90
  5. Step 5: Solve for x
    x = 320,036,692.90/25,128.66
  6. Step 6: Final answer
    x = 12,735.92

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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.