Home / 27,722.93-38,255.84-15,786.16

Finding the Fourth Proportional to 27,722.93, 38,255.84 and 15,786.16

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Solution

The fourth proportional to 27,722.93, 38,255.84 and 15,786.16 is: 21,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,722.93 : 38,255.84 = 15,786.16 : x
  2. Step 2: Convert to fraction form
    27,722.93/38,255.84 = 15,786.16/x
  3. Step 3: Cross multiply
    27,722.93x = 38,255.84 × 15,786.16
  4. Step 4: Simplify right side
    27,722.93x = 603,912,784.60
  5. Step 5: Solve for x
    x = 603,912,784.60/27,722.93
  6. Step 6: Final answer
    x = 21,783.88

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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.