Home / 31,515.08-43,490.82-17,174.92

Finding the Fourth Proportional to 31,515.08, 43,490.82 and 17,174.92

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Solution

The fourth proportional to 31,515.08, 43,490.82 and 17,174.92 is: 23,701.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.08 : 43,490.82 = 17,174.92 : x
  2. Step 2: Convert to fraction form
    31,515.08/43,490.82 = 17,174.92/x
  3. Step 3: Cross multiply
    31,515.08x = 43,490.82 × 17,174.92
  4. Step 4: Simplify right side
    31,515.08x = 746,951,199.51
  5. Step 5: Solve for x
    x = 746,951,199.51/31,515.08
  6. Step 6: Final answer
    x = 23,701.39

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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.