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Finding the Fourth Proportional to 37,672.74, 51,988.02 and 20,905.74

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Solution

The fourth proportional to 37,672.74, 51,988.02 and 20,905.74 is: 28,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,672.74 : 51,988.02 = 20,905.74 : x
  2. Step 2: Convert to fraction form
    37,672.74/51,988.02 = 20,905.74/x
  3. Step 3: Cross multiply
    37,672.74x = 51,988.02 × 20,905.74
  4. Step 4: Simplify right side
    37,672.74x = 1,086,848,029.23
  5. Step 5: Solve for x
    x = 1,086,848,029.23/37,672.74
  6. Step 6: Final answer
    x = 28,849.72

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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.