Home / 37,121.70-51,227.33-20,988.75

Finding the Fourth Proportional to 37,121.70, 51,227.33 and 20,988.75

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Solution

The fourth proportional to 37,121.70, 51,227.33 and 20,988.75 is: 28,964.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.70 : 51,227.33 = 20,988.75 : x
  2. Step 2: Convert to fraction form
    37,121.70/51,227.33 = 20,988.75/x
  3. Step 3: Cross multiply
    37,121.70x = 51,227.33 × 20,988.75
  4. Step 4: Simplify right side
    37,121.70x = 1,075,197,517.59
  5. Step 5: Solve for x
    x = 1,075,197,517.59/37,121.70
  6. Step 6: Final answer
    x = 28,964.12

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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.