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Finding the Fourth Proportional to 39,181.08, 54,068.92 and 22,413

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Solution

The fourth proportional to 39,181.08, 54,068.92 and 22,413 is: 30,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.08 : 54,068.92 = 22,413 : x
  2. Step 2: Convert to fraction form
    39,181.08/54,068.92 = 22,413/x
  3. Step 3: Cross multiply
    39,181.08x = 54,068.92 × 22,413
  4. Step 4: Simplify right side
    39,181.08x = 1,211,846,703.96
  5. Step 5: Solve for x
    x = 1,211,846,703.96/39,181.08
  6. Step 6: Final answer
    x = 30,929.38

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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.