Home / 39,657.46-54,728.82-21,753.22

Finding the Fourth Proportional to 39,657.46, 54,728.82 and 21,753.22

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Solution

The fourth proportional to 39,657.46, 54,728.82 and 21,753.22 is: 30,020.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,657.46 : 54,728.82 = 21,753.22 : x
  2. Step 2: Convert to fraction form
    39,657.46/54,728.82 = 21,753.22/x
  3. Step 3: Cross multiply
    39,657.46x = 54,728.82 × 21,753.22
  4. Step 4: Simplify right side
    39,657.46x = 1,190,527,679.39
  5. Step 5: Solve for x
    x = 1,190,527,679.39/39,657.46
  6. Step 6: Final answer
    x = 30,020.27

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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.