Home / 31,189.44-43,041.60-18,611.04

Finding the Fourth Proportional to 31,189.44, 43,041.60 and 18,611.04

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Solution

The fourth proportional to 31,189.44, 43,041.60 and 18,611.04 is: 25,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.44 : 43,041.60 = 18,611.04 : x
  2. Step 2: Convert to fraction form
    31,189.44/43,041.60 = 18,611.04/x
  3. Step 3: Cross multiply
    31,189.44x = 43,041.60 × 18,611.04
  4. Step 4: Simplify right side
    31,189.44x = 801,048,939.26
  5. Step 5: Solve for x
    x = 801,048,939.26/31,189.44
  6. Step 6: Final answer
    x = 25,683.34

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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.