Home / 39,193.42-54,086.84-21,288.42

Finding the Fourth Proportional to 39,193.42, 54,086.84 and 21,288.42

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Solution

The fourth proportional to 39,193.42, 54,086.84 and 21,288.42 is: 29,377.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,193.42 : 54,086.84 = 21,288.42 : x
  2. Step 2: Convert to fraction form
    39,193.42/54,086.84 = 21,288.42/x
  3. Step 3: Cross multiply
    39,193.42x = 54,086.84 × 21,288.42
  4. Step 4: Simplify right side
    39,193.42x = 1,151,423,366.39
  5. Step 5: Solve for x
    x = 1,151,423,366.39/39,193.42
  6. Step 6: Final answer
    x = 29,377.98

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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.