Home / 27,850.20-38,434.02-15,749.70

Finding the Fourth Proportional to 27,850.20, 38,434.02 and 15,749.70

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Solution

The fourth proportional to 27,850.20, 38,434.02 and 15,749.70 is: 21,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,850.20 : 38,434.02 = 15,749.70 : x
  2. Step 2: Convert to fraction form
    27,850.20/38,434.02 = 15,749.70/x
  3. Step 3: Cross multiply
    27,850.20x = 38,434.02 × 15,749.70
  4. Step 4: Simplify right side
    27,850.20x = 605,324,284.79
  5. Step 5: Solve for x
    x = 605,324,284.79/27,850.20
  6. Step 6: Final answer
    x = 21,735.01

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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.