Home / 39,197.78-54,092.98-21,292.79

Finding the Fourth Proportional to 39,197.78, 54,092.98 and 21,292.79

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Solution

The fourth proportional to 39,197.78, 54,092.98 and 21,292.79 is: 29,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,197.78 : 54,092.98 = 21,292.79 : x
  2. Step 2: Convert to fraction form
    39,197.78/54,092.98 = 21,292.79/x
  3. Step 3: Cross multiply
    39,197.78x = 54,092.98 × 21,292.79
  4. Step 4: Simplify right side
    39,197.78x = 1,151,790,219.77
  5. Step 5: Solve for x
    x = 1,151,790,219.77/39,197.78
  6. Step 6: Final answer
    x = 29,384.07

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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.