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Finding the Fourth Proportional to 37,443.31, 51,671.01 and 20,446.90

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Solution

The fourth proportional to 37,443.31, 51,671.01 and 20,446.90 is: 28,216.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,443.31 : 51,671.01 = 20,446.90 : x
  2. Step 2: Convert to fraction form
    37,443.31/51,671.01 = 20,446.90/x
  3. Step 3: Cross multiply
    37,443.31x = 51,671.01 × 20,446.90
  4. Step 4: Simplify right side
    37,443.31x = 1,056,511,974.37
  5. Step 5: Solve for x
    x = 1,056,511,974.37/37,443.31
  6. Step 6: Final answer
    x = 28,216.31

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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.