Home / 31,619.88-43,636.07-17,280.60

Finding the Fourth Proportional to 31,619.88, 43,636.07 and 17,280.60

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Solution

The fourth proportional to 31,619.88, 43,636.07 and 17,280.60 is: 23,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.88 : 43,636.07 = 17,280.60 : x
  2. Step 2: Convert to fraction form
    31,619.88/43,636.07 = 17,280.60/x
  3. Step 3: Cross multiply
    31,619.88x = 43,636.07 × 17,280.60
  4. Step 4: Simplify right side
    31,619.88x = 754,057,474.76
  5. Step 5: Solve for x
    x = 754,057,474.76/31,619.88
  6. Step 6: Final answer
    x = 23,847.58

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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.