Home / 30,791.80-46,185.29-18,947.17

Finding the Fourth Proportional to 30,791.80, 46,185.29 and 18,947.17

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Solution

The fourth proportional to 30,791.80, 46,185.29 and 18,947.17 is: 28,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.80 : 46,185.29 = 18,947.17 : x
  2. Step 2: Convert to fraction form
    30,791.80/46,185.29 = 18,947.17/x
  3. Step 3: Cross multiply
    30,791.80x = 46,185.29 × 18,947.17
  4. Step 4: Simplify right side
    30,791.80x = 875,080,315.38
  5. Step 5: Solve for x
    x = 875,080,315.38/30,791.80
  6. Step 6: Final answer
    x = 28,419.27

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1.5x scale

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.