Home / 37,129.12-51,237.12-20,361.76

Finding the Fourth Proportional to 37,129.12, 51,237.12 and 20,361.76

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Solution

The fourth proportional to 37,129.12, 51,237.12 and 20,361.76 is: 28,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.12 : 51,237.12 = 20,361.76 : x
  2. Step 2: Convert to fraction form
    37,129.12/51,237.12 = 20,361.76/x
  3. Step 3: Cross multiply
    37,129.12x = 51,237.12 × 20,361.76
  4. Step 4: Simplify right side
    37,129.12x = 1,043,277,940.53
  5. Step 5: Solve for x
    x = 1,043,277,940.53/37,129.12
  6. Step 6: Final answer
    x = 28,098.64

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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.