Home / 39,914.80-59,874.04-13,619.80

Finding the Fourth Proportional to 39,914.80, 59,874.04 and 13,619.80

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Solution

The fourth proportional to 39,914.80, 59,874.04 and 13,619.80 is: 20,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,914.80 : 59,874.04 = 13,619.80 : x
  2. Step 2: Convert to fraction form
    39,914.80/59,874.04 = 13,619.80/x
  3. Step 3: Cross multiply
    39,914.80x = 59,874.04 × 13,619.80
  4. Step 4: Simplify right side
    39,914.80x = 815,472,449.99
  5. Step 5: Solve for x
    x = 815,472,449.99/39,914.80
  6. Step 6: Final answer
    x = 20,430.33

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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.