Home / 31,731.44-43,786.28-18,982.08

Finding the Fourth Proportional to 31,731.44, 43,786.28 and 18,982.08

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Solution

The fourth proportional to 31,731.44, 43,786.28 and 18,982.08 is: 26,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.44 : 43,786.28 = 18,982.08 : x
  2. Step 2: Convert to fraction form
    31,731.44/43,786.28 = 18,982.08/x
  3. Step 3: Cross multiply
    31,731.44x = 43,786.28 × 18,982.08
  4. Step 4: Simplify right side
    31,731.44x = 831,154,669.86
  5. Step 5: Solve for x
    x = 831,154,669.86/31,731.44
  6. Step 6: Final answer
    x = 26,193.41

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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.