Home / 37,620.48-51,917.94-21,489.20

Finding the Fourth Proportional to 37,620.48, 51,917.94 and 21,489.20

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Solution

The fourth proportional to 37,620.48, 51,917.94 and 21,489.20 is: 29,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,620.48 : 51,917.94 = 21,489.20 : x
  2. Step 2: Convert to fraction form
    37,620.48/51,917.94 = 21,489.20/x
  3. Step 3: Cross multiply
    37,620.48x = 51,917.94 × 21,489.20
  4. Step 4: Simplify right side
    37,620.48x = 1,115,674,996.25
  5. Step 5: Solve for x
    x = 1,115,674,996.25/37,620.48
  6. Step 6: Final answer
    x = 29,656.05

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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.