Home / 31,616.46-43,610.81-20,274.03

Finding the Fourth Proportional to 31,616.46, 43,610.81 and 20,274.03

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Solution

The fourth proportional to 31,616.46, 43,610.81 and 20,274.03 is: 27,965.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.46 : 43,610.81 = 20,274.03 : x
  2. Step 2: Convert to fraction form
    31,616.46/43,610.81 = 20,274.03/x
  3. Step 3: Cross multiply
    31,616.46x = 43,610.81 × 20,274.03
  4. Step 4: Simplify right side
    31,616.46x = 884,166,768.89
  5. Step 5: Solve for x
    x = 884,166,768.89/31,616.46
  6. Step 6: Final answer
    x = 27,965.39

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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.