Home / 31,282.96-43,170.48-17,135.80

Finding the Fourth Proportional to 31,282.96, 43,170.48 and 17,135.80

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Solution

The fourth proportional to 31,282.96, 43,170.48 and 17,135.80 is: 23,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282.96 : 43,170.48 = 17,135.80 : x
  2. Step 2: Convert to fraction form
    31,282.96/43,170.48 = 17,135.80/x
  3. Step 3: Cross multiply
    31,282.96x = 43,170.48 × 17,135.80
  4. Step 4: Simplify right side
    31,282.96x = 739,760,409.65
  5. Step 5: Solve for x
    x = 739,760,409.65/31,282.96
  6. Step 6: Final answer
    x = 23,647.40

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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.