Home / 31,301.44-43,196.16-18,723.04

Finding the Fourth Proportional to 31,301.44, 43,196.16 and 18,723.04

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Solution

The fourth proportional to 31,301.44, 43,196.16 and 18,723.04 is: 25,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,301.44 : 43,196.16 = 18,723.04 : x
  2. Step 2: Convert to fraction form
    31,301.44/43,196.16 = 18,723.04/x
  3. Step 3: Cross multiply
    31,301.44x = 43,196.16 × 18,723.04
  4. Step 4: Simplify right side
    31,301.44x = 808,763,431.53
  5. Step 5: Solve for x
    x = 808,763,431.53/31,301.44
  6. Step 6: Final answer
    x = 25,837.90

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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.