Home / 39,581.52-54,622.08-21,676.56

Finding the Fourth Proportional to 39,581.52, 54,622.08 and 21,676.56

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Solution

The fourth proportional to 39,581.52, 54,622.08 and 21,676.56 is: 29,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,581.52 : 54,622.08 = 21,676.56 : x
  2. Step 2: Convert to fraction form
    39,581.52/54,622.08 = 21,676.56/x
  3. Step 3: Cross multiply
    39,581.52x = 54,622.08 × 21,676.56
  4. Step 4: Simplify right side
    39,581.52x = 1,184,018,794.44
  5. Step 5: Solve for x
    x = 1,184,018,794.44/39,581.52
  6. Step 6: Final answer
    x = 29,913.42

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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.