Home / 31,265.78-43,146.81-17,118.32

Finding the Fourth Proportional to 31,265.78, 43,146.81 and 17,118.32

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Solution

The fourth proportional to 31,265.78, 43,146.81 and 17,118.32 is: 23,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,265.78 : 43,146.81 = 17,118.32 : x
  2. Step 2: Convert to fraction form
    31,265.78/43,146.81 = 17,118.32/x
  3. Step 3: Cross multiply
    31,265.78x = 43,146.81 × 17,118.32
  4. Step 4: Simplify right side
    31,265.78x = 738,600,900.56
  5. Step 5: Solve for x
    x = 738,600,900.56/31,265.78
  6. Step 6: Final answer
    x = 23,623.30

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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.