Home / 39,027.37-53,857.92-21,122.37

Finding the Fourth Proportional to 39,027.37, 53,857.92 and 21,122.37

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Solution

The fourth proportional to 39,027.37, 53,857.92 and 21,122.37 is: 29,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,027.37 : 53,857.92 = 21,122.37 : x
  2. Step 2: Convert to fraction form
    39,027.37/53,857.92 = 21,122.37/x
  3. Step 3: Cross multiply
    39,027.37x = 53,857.92 × 21,122.37
  4. Step 4: Simplify right side
    39,027.37x = 1,137,606,644.38
  5. Step 5: Solve for x
    x = 1,137,606,644.38/39,027.37
  6. Step 6: Final answer
    x = 29,148.95

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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.