Home / 28,474.92-39,295.58-15,727.75

Finding the Fourth Proportional to 28,474.92, 39,295.58 and 15,727.75

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Solution

The fourth proportional to 28,474.92, 39,295.58 and 15,727.75 is: 21,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.92 : 39,295.58 = 15,727.75 : x
  2. Step 2: Convert to fraction form
    28,474.92/39,295.58 = 15,727.75/x
  3. Step 3: Cross multiply
    28,474.92x = 39,295.58 × 15,727.75
  4. Step 4: Simplify right side
    28,474.92x = 618,031,058.35
  5. Step 5: Solve for x
    x = 618,031,058.35/28,474.92
  6. Step 6: Final answer
    x = 21,704.40

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Similar ratio
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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.