Home / 22,939.86-31,638.75-18,954.06

Finding the Fourth Proportional to 22,939.86, 31,638.75 and 18,954.06

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Solution

The fourth proportional to 22,939.86, 31,638.75 and 18,954.06 is: 26,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.86 : 31,638.75 = 18,954.06 : x
  2. Step 2: Convert to fraction form
    22,939.86/31,638.75 = 18,954.06/x
  3. Step 3: Cross multiply
    22,939.86x = 31,638.75 × 18,954.06
  4. Step 4: Simplify right side
    22,939.86x = 599,682,512.86
  5. Step 5: Solve for x
    x = 599,682,512.86/22,939.86
  6. Step 6: Final answer
    x = 26,141.51

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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.