Home / 39,506.81-54,519.41-21,601.96

Finding the Fourth Proportional to 39,506.81, 54,519.41 and 21,601.96

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Solution

The fourth proportional to 39,506.81, 54,519.41 and 21,601.96 is: 29,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,506.81 : 54,519.41 = 21,601.96 : x
  2. Step 2: Convert to fraction form
    39,506.81/54,519.41 = 21,601.96/x
  3. Step 3: Cross multiply
    39,506.81x = 54,519.41 × 21,601.96
  4. Step 4: Simplify right side
    39,506.81x = 1,177,726,031.75
  5. Step 5: Solve for x
    x = 1,177,726,031.75/39,506.81
  6. Step 6: Final answer
    x = 29,810.71

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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.