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Finding the Fourth Proportional to 37,481.81, 51,724.80 and 21,349.11

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Solution

The fourth proportional to 37,481.81, 51,724.80 and 21,349.11 is: 29,461.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,481.81 : 51,724.80 = 21,349.11 : x
  2. Step 2: Convert to fraction form
    37,481.81/51,724.80 = 21,349.11/x
  3. Step 3: Cross multiply
    37,481.81x = 51,724.80 × 21,349.11
  4. Step 4: Simplify right side
    37,481.81x = 1,104,278,444.93
  5. Step 5: Solve for x
    x = 1,104,278,444.93/37,481.81
  6. Step 6: Final answer
    x = 29,461.72

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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.