Home / 28,704.51-43,016.67-13,909.50

Finding the Fourth Proportional to 28,704.51, 43,016.67 and 13,909.50

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Solution

The fourth proportional to 28,704.51, 43,016.67 and 13,909.50 is: 20,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.51 : 43,016.67 = 13,909.50 : x
  2. Step 2: Convert to fraction form
    28,704.51/43,016.67 = 13,909.50/x
  3. Step 3: Cross multiply
    28,704.51x = 43,016.67 × 13,909.50
  4. Step 4: Simplify right side
    28,704.51x = 598,340,371.37
  5. Step 5: Solve for x
    x = 598,340,371.37/28,704.51
  6. Step 6: Final answer
    x = 20,844.82

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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.