Home / 19,948.92-27,479.64-15,225

Finding the Fourth Proportional to 19,948.92, 27,479.64 and 15,225

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Solution

The fourth proportional to 19,948.92, 27,479.64 and 15,225 is: 20,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.92 : 27,479.64 = 15,225 : x
  2. Step 2: Convert to fraction form
    19,948.92/27,479.64 = 15,225/x
  3. Step 3: Cross multiply
    19,948.92x = 27,479.64 × 15,225
  4. Step 4: Simplify right side
    19,948.92x = 418,377,519
  5. Step 5: Solve for x
    x = 418,377,519/19,948.92
  6. Step 6: Final answer
    x = 20,972.44

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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.