Home / 27,217.08-40,787.28-21,645.72

Finding the Fourth Proportional to 27,217.08, 40,787.28 and 21,645.72

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Solution

The fourth proportional to 27,217.08, 40,787.28 and 21,645.72 is: 32,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,217.08 : 40,787.28 = 21,645.72 : x
  2. Step 2: Convert to fraction form
    27,217.08/40,787.28 = 21,645.72/x
  3. Step 3: Cross multiply
    27,217.08x = 40,787.28 × 21,645.72
  4. Step 4: Simplify right side
    27,217.08x = 882,870,042.44
  5. Step 5: Solve for x
    x = 882,870,042.44/27,217.08
  6. Step 6: Final answer
    x = 32,438.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.