Home / 37,195.75-51,330.18-20,428.75

Finding the Fourth Proportional to 37,195.75, 51,330.18 and 20,428.75

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Solution

The fourth proportional to 37,195.75, 51,330.18 and 20,428.75 is: 28,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,195.75 : 51,330.18 = 20,428.75 : x
  2. Step 2: Convert to fraction form
    37,195.75/51,330.18 = 20,428.75/x
  3. Step 3: Cross multiply
    37,195.75x = 51,330.18 × 20,428.75
  4. Step 4: Simplify right side
    37,195.75x = 1,048,611,414.68
  5. Step 5: Solve for x
    x = 1,048,611,414.68/37,195.75
  6. Step 6: Final answer
    x = 28,191.70

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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.