Home / 28,190.25-38,902.55-17,012.25

Finding the Fourth Proportional to 28,190.25, 38,902.55 and 17,012.25

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Solution

The fourth proportional to 28,190.25, 38,902.55 and 17,012.25 is: 23,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.25 : 38,902.55 = 17,012.25 : x
  2. Step 2: Convert to fraction form
    28,190.25/38,902.55 = 17,012.25/x
  3. Step 3: Cross multiply
    28,190.25x = 38,902.55 × 17,012.25
  4. Step 4: Simplify right side
    28,190.25x = 661,819,821.18
  5. Step 5: Solve for x
    x = 661,819,821.18/28,190.25
  6. Step 6: Final answer
    x = 23,476.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.