Home / 39,027.54-53,858.08-21,122.70

Finding the Fourth Proportional to 39,027.54, 53,858.08 and 21,122.70

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Solution

The fourth proportional to 39,027.54, 53,858.08 and 21,122.70 is: 29,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,027.54 : 53,858.08 = 21,122.70 : x
  2. Step 2: Convert to fraction form
    39,027.54/53,858.08 = 21,122.70/x
  3. Step 3: Cross multiply
    39,027.54x = 53,858.08 × 21,122.70
  4. Step 4: Simplify right side
    39,027.54x = 1,137,628,066.42
  5. Step 5: Solve for x
    x = 1,137,628,066.42/39,027.54
  6. Step 6: Final answer
    x = 29,149.37

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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.