Home / 37,131.12-51,241.32-20,135.40

Finding the Fourth Proportional to 37,131.12, 51,241.32 and 20,135.40

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Solution

The fourth proportional to 37,131.12, 51,241.32 and 20,135.40 is: 27,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,131.12 : 51,241.32 = 20,135.40 : x
  2. Step 2: Convert to fraction form
    37,131.12/51,241.32 = 20,135.40/x
  3. Step 3: Cross multiply
    37,131.12x = 51,241.32 × 20,135.40
  4. Step 4: Simplify right side
    37,131.12x = 1,031,764,474.73
  5. Step 5: Solve for x
    x = 1,031,764,474.73/37,131.12
  6. Step 6: Final answer
    x = 27,787.06

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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.