Home / 21,620.52-29,841.92-14,085.64

Finding the Fourth Proportional to 21,620.52, 29,841.92 and 14,085.64

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Solution

The fourth proportional to 21,620.52, 29,841.92 and 14,085.64 is: 19,441.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.52 : 29,841.92 = 14,085.64 : x
  2. Step 2: Convert to fraction form
    21,620.52/29,841.92 = 14,085.64/x
  3. Step 3: Cross multiply
    21,620.52x = 29,841.92 × 14,085.64
  4. Step 4: Simplify right side
    21,620.52x = 420,342,542.03
  5. Step 5: Solve for x
    x = 420,342,542.03/21,620.52
  6. Step 6: Final answer
    x = 19,441.83

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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.