Home / 31,258.55-43,136.87-17,112.30

Finding the Fourth Proportional to 31,258.55, 43,136.87 and 17,112.30

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Solution

The fourth proportional to 31,258.55, 43,136.87 and 17,112.30 is: 23,615.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258.55 : 43,136.87 = 17,112.30 : x
  2. Step 2: Convert to fraction form
    31,258.55/43,136.87 = 17,112.30/x
  3. Step 3: Cross multiply
    31,258.55x = 43,136.87 × 17,112.30
  4. Step 4: Simplify right side
    31,258.55x = 738,170,974.94
  5. Step 5: Solve for x
    x = 738,170,974.94/31,258.55
  6. Step 6: Final answer
    x = 23,615.01

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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.