Home / 39,935.88-59,914.44-13,640.58

Finding the Fourth Proportional to 39,935.88, 59,914.44 and 13,640.58

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Solution

The fourth proportional to 39,935.88, 59,914.44 and 13,640.58 is: 20,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,935.88 : 59,914.44 = 13,640.58 : x
  2. Step 2: Convert to fraction form
    39,935.88/59,914.44 = 13,640.58/x
  3. Step 3: Cross multiply
    39,935.88x = 59,914.44 × 13,640.58
  4. Step 4: Simplify right side
    39,935.88x = 817,267,711.98
  5. Step 5: Solve for x
    x = 817,267,711.98/39,935.88
  6. Step 6: Final answer
    x = 20,464.50

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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.