Home / 33,143.50-45,728.31-19,708.03

Finding the Fourth Proportional to 33,143.50, 45,728.31 and 19,708.03

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Solution

The fourth proportional to 33,143.50, 45,728.31 and 19,708.03 is: 27,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,143.50 : 45,728.31 = 19,708.03 : x
  2. Step 2: Convert to fraction form
    33,143.50/45,728.31 = 19,708.03/x
  3. Step 3: Cross multiply
    33,143.50x = 45,728.31 × 19,708.03
  4. Step 4: Simplify right side
    33,143.50x = 901,214,905.33
  5. Step 5: Solve for x
    x = 901,214,905.33/33,143.50
  6. Step 6: Final answer
    x = 27,191.30

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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.