Home / 39,661.46-54,732.89-21,756.61

Finding the Fourth Proportional to 39,661.46, 54,732.89 and 21,756.61

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Solution

The fourth proportional to 39,661.46, 54,732.89 and 21,756.61 is: 30,024.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,661.46 : 54,732.89 = 21,756.61 : x
  2. Step 2: Convert to fraction form
    39,661.46/54,732.89 = 21,756.61/x
  3. Step 3: Cross multiply
    39,661.46x = 54,732.89 × 21,756.61
  4. Step 4: Simplify right side
    39,661.46x = 1,190,802,059.46
  5. Step 5: Solve for x
    x = 1,190,802,059.46/39,661.46
  6. Step 6: Final answer
    x = 30,024.16

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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.