Home / 31,702.94-43,749.97-18,274.09

Finding the Fourth Proportional to 31,702.94, 43,749.97 and 18,274.09

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Solution

The fourth proportional to 31,702.94, 43,749.97 and 18,274.09 is: 25,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,702.94 : 43,749.97 = 18,274.09 : x
  2. Step 2: Convert to fraction form
    31,702.94/43,749.97 = 18,274.09/x
  3. Step 3: Cross multiply
    31,702.94x = 43,749.97 × 18,274.09
  4. Step 4: Simplify right side
    31,702.94x = 799,490,889.28
  5. Step 5: Solve for x
    x = 799,490,889.28/31,702.94
  6. Step 6: Final answer
    x = 25,218.19

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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.