Home / 40,905.24-61,359.23-11,320.60

Finding the Fourth Proportional to 40,905.24, 61,359.23 and 11,320.60

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Solution

The fourth proportional to 40,905.24, 61,359.23 and 11,320.60 is: 16,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,905.24 : 61,359.23 = 11,320.60 : x
  2. Step 2: Convert to fraction form
    40,905.24/61,359.23 = 11,320.60/x
  3. Step 3: Cross multiply
    40,905.24x = 61,359.23 × 11,320.60
  4. Step 4: Simplify right side
    40,905.24x = 694,623,299.14
  5. Step 5: Solve for x
    x = 694,623,299.14/40,905.24
  6. Step 6: Final answer
    x = 16,981.28

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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.