Home / 37,135.75-51,246.37-21,220.20

Finding the Fourth Proportional to 37,135.75, 51,246.37 and 21,220.20

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Solution

The fourth proportional to 37,135.75, 51,246.37 and 21,220.20 is: 29,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,135.75 : 51,246.37 = 21,220.20 : x
  2. Step 2: Convert to fraction form
    37,135.75/51,246.37 = 21,220.20/x
  3. Step 3: Cross multiply
    37,135.75x = 51,246.37 × 21,220.20
  4. Step 4: Simplify right side
    37,135.75x = 1,087,458,247.20
  5. Step 5: Solve for x
    x = 1,087,458,247.20/37,135.75
  6. Step 6: Final answer
    x = 29,283.33

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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.