Home / 22,305.43-30,791.37-15,617.35

Finding the Fourth Proportional to 22,305.43, 30,791.37 and 15,617.35

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Solution

The fourth proportional to 22,305.43, 30,791.37 and 15,617.35 is: 21,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.43 : 30,791.37 = 15,617.35 : x
  2. Step 2: Convert to fraction form
    22,305.43/30,791.37 = 15,617.35/x
  3. Step 3: Cross multiply
    22,305.43x = 30,791.37 × 15,617.35
  4. Step 4: Simplify right side
    22,305.43x = 480,879,602.27
  5. Step 5: Solve for x
    x = 480,879,602.27/22,305.43
  6. Step 6: Final answer
    x = 21,558.86

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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.