Home / 37,140.22-51,257.00-21,221.58

Finding the Fourth Proportional to 37,140.22, 51,257.00 and 21,221.58

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Solution

The fourth proportional to 37,140.22, 51,257.00 and 21,221.58 is: 29,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,140.22 : 51,257.00 = 21,221.58 : x
  2. Step 2: Convert to fraction form
    37,140.22/51,257.00 = 21,221.58/x
  3. Step 3: Cross multiply
    37,140.22x = 51,257.00 × 21,221.58
  4. Step 4: Simplify right side
    37,140.22x = 1,087,754,579.11
  5. Step 5: Solve for x
    x = 1,087,754,579.11/37,140.22
  6. Step 6: Final answer
    x = 29,287.78

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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.