Home / 20,143.58-27,801.72-11,644.52

Finding the Fourth Proportional to 20,143.58, 27,801.72 and 11,644.52

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Solution

The fourth proportional to 20,143.58, 27,801.72 and 11,644.52 is: 16,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.58 : 27,801.72 = 11,644.52 : x
  2. Step 2: Convert to fraction form
    20,143.58/27,801.72 = 11,644.52/x
  3. Step 3: Cross multiply
    20,143.58x = 27,801.72 × 11,644.52
  4. Step 4: Simplify right side
    20,143.58x = 323,737,684.57
  5. Step 5: Solve for x
    x = 323,737,684.57/20,143.58
  6. Step 6: Final answer
    x = 16,071.51

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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.