Home / 39,940.56-55,145.70-24,840

Finding the Fourth Proportional to 39,940.56, 55,145.70 and 24,840

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Solution

The fourth proportional to 39,940.56, 55,145.70 and 24,840 is: 34,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940.56 : 55,145.70 = 24,840 : x
  2. Step 2: Convert to fraction form
    39,940.56/55,145.70 = 24,840/x
  3. Step 3: Cross multiply
    39,940.56x = 55,145.70 × 24,840
  4. Step 4: Simplify right side
    39,940.56x = 1,369,819,188
  5. Step 5: Solve for x
    x = 1,369,819,188/39,940.56
  6. Step 6: Final answer
    x = 34,296.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.