Home / 38,274.12-52,815.78-21,503.88

Finding the Fourth Proportional to 38,274.12, 52,815.78 and 21,503.88

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Solution

The fourth proportional to 38,274.12, 52,815.78 and 21,503.88 is: 29,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,274.12 : 52,815.78 = 21,503.88 : x
  2. Step 2: Convert to fraction form
    38,274.12/52,815.78 = 21,503.88/x
  3. Step 3: Cross multiply
    38,274.12x = 52,815.78 × 21,503.88
  4. Step 4: Simplify right side
    38,274.12x = 1,135,744,195.23
  5. Step 5: Solve for x
    x = 1,135,744,195.23/38,274.12
  6. Step 6: Final answer
    x = 29,673.95

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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.