Home / 31,546.98-43,523.83-20,222.72

Finding the Fourth Proportional to 31,546.98, 43,523.83 and 20,222.72

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Solution

The fourth proportional to 31,546.98, 43,523.83 and 20,222.72 is: 27,900.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546.98 : 43,523.83 = 20,222.72 : x
  2. Step 2: Convert to fraction form
    31,546.98/43,523.83 = 20,222.72/x
  3. Step 3: Cross multiply
    31,546.98x = 43,523.83 × 20,222.72
  4. Step 4: Simplify right side
    31,546.98x = 880,169,959.24
  5. Step 5: Solve for x
    x = 880,169,959.24/31,546.98
  6. Step 6: Final answer
    x = 27,900.29

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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.