Home / 40,905.87-61,359.57-12,825.30

Finding the Fourth Proportional to 40,905.87, 61,359.57 and 12,825.30

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Solution

The fourth proportional to 40,905.87, 61,359.57 and 12,825.30 is: 19,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,905.87 : 61,359.57 = 12,825.30 : x
  2. Step 2: Convert to fraction form
    40,905.87/61,359.57 = 12,825.30/x
  3. Step 3: Cross multiply
    40,905.87x = 61,359.57 × 12,825.30
  4. Step 4: Simplify right side
    40,905.87x = 786,954,893.12
  5. Step 5: Solve for x
    x = 786,954,893.12/40,905.87
  6. Step 6: Final answer
    x = 19,238.19

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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.