Home / 28,738.80-43,047.64-13,169.52

Finding the Fourth Proportional to 28,738.80, 43,047.64 and 13,169.52

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Solution

The fourth proportional to 28,738.80, 43,047.64 and 13,169.52 is: 19,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.80 : 43,047.64 = 13,169.52 : x
  2. Step 2: Convert to fraction form
    28,738.80/43,047.64 = 13,169.52/x
  3. Step 3: Cross multiply
    28,738.80x = 43,047.64 × 13,169.52
  4. Step 4: Simplify right side
    28,738.80x = 566,916,755.93
  5. Step 5: Solve for x
    x = 566,916,755.93/28,738.80
  6. Step 6: Final answer
    x = 19,726.53

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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.