Home / 39,492.18-54,498.24-21,586.68

Finding the Fourth Proportional to 39,492.18, 54,498.24 and 21,586.68

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Solution

The fourth proportional to 39,492.18, 54,498.24 and 21,586.68 is: 29,789.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,492.18 : 54,498.24 = 21,586.68 : x
  2. Step 2: Convert to fraction form
    39,492.18/54,498.24 = 21,586.68/x
  3. Step 3: Cross multiply
    39,492.18x = 54,498.24 × 21,586.68
  4. Step 4: Simplify right side
    39,492.18x = 1,176,436,067.44
  5. Step 5: Solve for x
    x = 1,176,436,067.44/39,492.18
  6. Step 6: Final answer
    x = 29,789.09

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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.