Home / 31,285.44-43,173.93-17,138.31

Finding the Fourth Proportional to 31,285.44, 43,173.93 and 17,138.31

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Solution

The fourth proportional to 31,285.44, 43,173.93 and 17,138.31 is: 23,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.44 : 43,173.93 = 17,138.31 : x
  2. Step 2: Convert to fraction form
    31,285.44/43,173.93 = 17,138.31/x
  3. Step 3: Cross multiply
    31,285.44x = 43,173.93 × 17,138.31
  4. Step 4: Simplify right side
    31,285.44x = 739,928,196.26
  5. Step 5: Solve for x
    x = 739,928,196.26/31,285.44
  6. Step 6: Final answer
    x = 23,650.88

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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.