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Finding the Fourth Proportional to 34,326.60, 51,392.84 and 21,815.64

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Solution

The fourth proportional to 34,326.60, 51,392.84 and 21,815.64 is: 32,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,326.60 : 51,392.84 = 21,815.64 : x
  2. Step 2: Convert to fraction form
    34,326.60/51,392.84 = 21,815.64/x
  3. Step 3: Cross multiply
    34,326.60x = 51,392.84 × 21,815.64
  4. Step 4: Simplify right side
    34,326.60x = 1,121,167,696.02
  5. Step 5: Solve for x
    x = 1,121,167,696.02/34,326.60
  6. Step 6: Final answer
    x = 32,661.78

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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.