Home / 20,166.12-27,827.46-11,781

Finding the Fourth Proportional to 20,166.12, 27,827.46 and 11,781

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Solution

The fourth proportional to 20,166.12, 27,827.46 and 11,781 is: 16,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.12 : 27,827.46 = 11,781 : x
  2. Step 2: Convert to fraction form
    20,166.12/27,827.46 = 11,781/x
  3. Step 3: Cross multiply
    20,166.12x = 27,827.46 × 11,781
  4. Step 4: Simplify right side
    20,166.12x = 327,835,306.26
  5. Step 5: Solve for x
    x = 327,835,306.26/20,166.12
  6. Step 6: Final answer
    x = 16,256.74

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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.