Home / 27,122.80-40,690.70-11,319.04

Finding the Fourth Proportional to 27,122.80, 40,690.70 and 11,319.04

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Solution

The fourth proportional to 27,122.80, 40,690.70 and 11,319.04 is: 16,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,122.80 : 40,690.70 = 11,319.04 : x
  2. Step 2: Convert to fraction form
    27,122.80/40,690.70 = 11,319.04/x
  3. Step 3: Cross multiply
    27,122.80x = 40,690.70 × 11,319.04
  4. Step 4: Simplify right side
    27,122.80x = 460,579,604.33
  5. Step 5: Solve for x
    x = 460,579,604.33/27,122.80
  6. Step 6: Final answer
    x = 16,981.27

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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.