Home / 39,930.64-59,905.07-13,635

Finding the Fourth Proportional to 39,930.64, 59,905.07 and 13,635

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Solution

The fourth proportional to 39,930.64, 59,905.07 and 13,635 is: 20,455.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.64 : 59,905.07 = 13,635 : x
  2. Step 2: Convert to fraction form
    39,930.64/59,905.07 = 13,635/x
  3. Step 3: Cross multiply
    39,930.64x = 59,905.07 × 13,635
  4. Step 4: Simplify right side
    39,930.64x = 816,805,612.41
  5. Step 5: Solve for x
    x = 816,805,612.41/39,930.64
  6. Step 6: Final answer
    x = 20,455.61

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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.