Home / 31,284.90-43,173.86-17,855.89

Finding the Fourth Proportional to 31,284.90, 43,173.86 and 17,855.89

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Solution

The fourth proportional to 31,284.90, 43,173.86 and 17,855.89 is: 24,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,284.90 : 43,173.86 = 17,855.89 : x
  2. Step 2: Convert to fraction form
    31,284.90/43,173.86 = 17,855.89/x
  3. Step 3: Cross multiply
    31,284.90x = 43,173.86 × 17,855.89
  4. Step 4: Simplify right side
    31,284.90x = 770,907,497.82
  5. Step 5: Solve for x
    x = 770,907,497.82/31,284.90
  6. Step 6: Final answer
    x = 24,641.52

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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.