Home / 39,292.35-54,224.66-21,388.56

Finding the Fourth Proportional to 39,292.35, 54,224.66 and 21,388.56

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Solution

The fourth proportional to 39,292.35, 54,224.66 and 21,388.56 is: 29,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292.35 : 54,224.66 = 21,388.56 : x
  2. Step 2: Convert to fraction form
    39,292.35/54,224.66 = 21,388.56/x
  3. Step 3: Cross multiply
    39,292.35x = 54,224.66 × 21,388.56
  4. Step 4: Simplify right side
    39,292.35x = 1,159,787,393.89
  5. Step 5: Solve for x
    x = 1,159,787,393.89/39,292.35
  6. Step 6: Final answer
    x = 29,516.88

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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.