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Finding the Fourth Proportional to 38,287.56, 52,841.58 and 21,520.56

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Solution

The fourth proportional to 38,287.56, 52,841.58 and 21,520.56 is: 29,701.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,287.56 : 52,841.58 = 21,520.56 : x
  2. Step 2: Convert to fraction form
    38,287.56/52,841.58 = 21,520.56/x
  3. Step 3: Cross multiply
    38,287.56x = 52,841.58 × 21,520.56
  4. Step 4: Simplify right side
    38,287.56x = 1,137,180,392.88
  5. Step 5: Solve for x
    x = 1,137,180,392.88/38,287.56
  6. Step 6: Final answer
    x = 29,701.04

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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.