Home / 39,732.55-54,829.63-21,826.43

Finding the Fourth Proportional to 39,732.55, 54,829.63 and 21,826.43

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Solution

The fourth proportional to 39,732.55, 54,829.63 and 21,826.43 is: 30,119.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,732.55 : 54,829.63 = 21,826.43 : x
  2. Step 2: Convert to fraction form
    39,732.55/54,829.63 = 21,826.43/x
  3. Step 3: Cross multiply
    39,732.55x = 54,829.63 × 21,826.43
  4. Step 4: Simplify right side
    39,732.55x = 1,196,735,078.79
  5. Step 5: Solve for x
    x = 1,196,735,078.79/39,732.55
  6. Step 6: Final answer
    x = 30,119.77

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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.