Home / 39,054.70-53,895.54-21,149.73

Finding the Fourth Proportional to 39,054.70, 53,895.54 and 21,149.73

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Solution

The fourth proportional to 39,054.70, 53,895.54 and 21,149.73 is: 29,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,054.70 : 53,895.54 = 21,149.73 : x
  2. Step 2: Convert to fraction form
    39,054.70/53,895.54 = 21,149.73/x
  3. Step 3: Cross multiply
    39,054.70x = 53,895.54 × 21,149.73
  4. Step 4: Simplify right side
    39,054.70x = 1,139,876,119.20
  5. Step 5: Solve for x
    x = 1,139,876,119.20/39,054.70
  6. Step 6: Final answer
    x = 29,186.66

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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.