Home / 37,699.50-52,021.38-21,789.09

Finding the Fourth Proportional to 37,699.50, 52,021.38 and 21,789.09

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Solution

The fourth proportional to 37,699.50, 52,021.38 and 21,789.09 is: 30,066.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,699.50 : 52,021.38 = 21,789.09 : x
  2. Step 2: Convert to fraction form
    37,699.50/52,021.38 = 21,789.09/x
  3. Step 3: Cross multiply
    37,699.50x = 52,021.38 × 21,789.09
  4. Step 4: Simplify right side
    37,699.50x = 1,133,498,530.74
  5. Step 5: Solve for x
    x = 1,133,498,530.74/37,699.50
  6. Step 6: Final answer
    x = 30,066.67

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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.