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Finding the Fourth Proportional to 37,926, 52,337.88 and 21,159

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Solution

The fourth proportional to 37,926, 52,337.88 and 21,159 is: 29,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,926 : 52,337.88 = 21,159 : x
  2. Step 2: Convert to fraction form
    37,926/52,337.88 = 21,159/x
  3. Step 3: Cross multiply
    37,926x = 52,337.88 × 21,159
  4. Step 4: Simplify right side
    37,926x = 1,107,417,202.92
  5. Step 5: Solve for x
    x = 1,107,417,202.92/37,926
  6. Step 6: Final answer
    x = 29,199.42

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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.