Home / 27,674.70-38,190.90-15,738.02

Finding the Fourth Proportional to 27,674.70, 38,190.90 and 15,738.02

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Solution

The fourth proportional to 27,674.70, 38,190.90 and 15,738.02 is: 21,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,674.70 : 38,190.90 = 15,738.02 : x
  2. Step 2: Convert to fraction form
    27,674.70/38,190.90 = 15,738.02/x
  3. Step 3: Cross multiply
    27,674.70x = 38,190.90 × 15,738.02
  4. Step 4: Simplify right side
    27,674.70x = 601,049,148.02
  5. Step 5: Solve for x
    x = 601,049,148.02/27,674.70
  6. Step 6: Final answer
    x = 21,718.36

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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.