Home / 31,236.36-43,106.40-16,896.20

Finding the Fourth Proportional to 31,236.36, 43,106.40 and 16,896.20

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Solution

The fourth proportional to 31,236.36, 43,106.40 and 16,896.20 is: 23,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,236.36 : 43,106.40 = 16,896.20 : x
  2. Step 2: Convert to fraction form
    31,236.36/43,106.40 = 16,896.20/x
  3. Step 3: Cross multiply
    31,236.36x = 43,106.40 × 16,896.20
  4. Step 4: Simplify right side
    31,236.36x = 728,334,140.15
  5. Step 5: Solve for x
    x = 728,334,140.15/31,236.36
  6. Step 6: Final answer
    x = 23,316.87

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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.