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Finding the Fourth Proportional to 37,818, 52,188.84 and 21,050.64

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Solution

The fourth proportional to 37,818, 52,188.84 and 21,050.64 is: 29,049.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,818 : 52,188.84 = 21,050.64 : x
  2. Step 2: Convert to fraction form
    37,818/52,188.84 = 21,050.64/x
  3. Step 3: Cross multiply
    37,818x = 52,188.84 × 21,050.64
  4. Step 4: Simplify right side
    37,818x = 1,098,608,482.86
  5. Step 5: Solve for x
    x = 1,098,608,482.86/37,818
  6. Step 6: Final answer
    x = 29,049.88

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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.