Home / 28,759.80-43,125.09-13,164.06

Finding the Fourth Proportional to 28,759.80, 43,125.09 and 13,164.06

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Solution

The fourth proportional to 28,759.80, 43,125.09 and 13,164.06 is: 19,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.80 : 43,125.09 = 13,164.06 : x
  2. Step 2: Convert to fraction form
    28,759.80/43,125.09 = 13,164.06/x
  3. Step 3: Cross multiply
    28,759.80x = 43,125.09 × 13,164.06
  4. Step 4: Simplify right side
    28,759.80x = 567,701,272.27
  5. Step 5: Solve for x
    x = 567,701,272.27/28,759.80
  6. Step 6: Final answer
    x = 19,739.40

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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.