Home / 28,127.26-42,190.93-11,487.29

Finding the Fourth Proportional to 28,127.26, 42,190.93 and 11,487.29

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Solution

The fourth proportional to 28,127.26, 42,190.93 and 11,487.29 is: 17,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.26 : 42,190.93 = 11,487.29 : x
  2. Step 2: Convert to fraction form
    28,127.26/42,190.93 = 11,487.29/x
  3. Step 3: Cross multiply
    28,127.26x = 42,190.93 × 11,487.29
  4. Step 4: Simplify right side
    28,127.26x = 484,659,448.28
  5. Step 5: Solve for x
    x = 484,659,448.28/28,127.26
  6. Step 6: Final answer
    x = 17,230.95

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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.