Home / 28,323.87-39,072.56-18,876.03

Finding the Fourth Proportional to 28,323.87, 39,072.56 and 18,876.03

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Solution

The fourth proportional to 28,323.87, 39,072.56 and 18,876.03 is: 26,039.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.87 : 39,072.56 = 18,876.03 : x
  2. Step 2: Convert to fraction form
    28,323.87/39,072.56 = 18,876.03/x
  3. Step 3: Cross multiply
    28,323.87x = 39,072.56 × 18,876.03
  4. Step 4: Simplify right side
    28,323.87x = 737,534,720.36
  5. Step 5: Solve for x
    x = 737,534,720.36/28,323.87
  6. Step 6: Final answer
    x = 26,039.33

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1.5x scale

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.