Home / 39,928.57-59,879.89-13,267.40

Finding the Fourth Proportional to 39,928.57, 59,879.89 and 13,267.40

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Solution

The fourth proportional to 39,928.57, 59,879.89 and 13,267.40 is: 19,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928.57 : 59,879.89 = 13,267.40 : x
  2. Step 2: Convert to fraction form
    39,928.57/59,879.89 = 13,267.40/x
  3. Step 3: Cross multiply
    39,928.57x = 59,879.89 × 13,267.40
  4. Step 4: Simplify right side
    39,928.57x = 794,450,344.57
  5. Step 5: Solve for x
    x = 794,450,344.57/39,928.57
  6. Step 6: Final answer
    x = 19,896.79

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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.