Home / 39,189.37-54,081.73-21,284.73

Finding the Fourth Proportional to 39,189.37, 54,081.73 and 21,284.73

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Solution

The fourth proportional to 39,189.37, 54,081.73 and 21,284.73 is: 29,373.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,189.37 : 54,081.73 = 21,284.73 : x
  2. Step 2: Convert to fraction form
    39,189.37/54,081.73 = 21,284.73/x
  3. Step 3: Cross multiply
    39,189.37x = 54,081.73 × 21,284.73
  4. Step 4: Simplify right side
    39,189.37x = 1,151,115,020.98
  5. Step 5: Solve for x
    x = 1,151,115,020.98/39,189.37
  6. Step 6: Final answer
    x = 29,373.14

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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.