Home / 27,659.47-38,169.72-15,722.03

Finding the Fourth Proportional to 27,659.47, 38,169.72 and 15,722.03

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Solution

The fourth proportional to 27,659.47, 38,169.72 and 15,722.03 is: 21,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,659.47 : 38,169.72 = 15,722.03 : x
  2. Step 2: Convert to fraction form
    27,659.47/38,169.72 = 15,722.03/x
  3. Step 3: Cross multiply
    27,659.47x = 38,169.72 × 15,722.03
  4. Step 4: Simplify right side
    27,659.47x = 600,105,435.22
  5. Step 5: Solve for x
    x = 600,105,435.22/27,659.47
  6. Step 6: Final answer
    x = 21,696.20

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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.