Home / 22,675.38-31,289.85-21,003.54

Finding the Fourth Proportional to 22,675.38, 31,289.85 and 21,003.54

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Solution

The fourth proportional to 22,675.38, 31,289.85 and 21,003.54 is: 28,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,675.38 : 31,289.85 = 21,003.54 : x
  2. Step 2: Convert to fraction form
    22,675.38/31,289.85 = 21,003.54/x
  3. Step 3: Cross multiply
    22,675.38x = 31,289.85 × 21,003.54
  4. Step 4: Simplify right side
    22,675.38x = 657,197,616.07
  5. Step 5: Solve for x
    x = 657,197,616.07/22,675.38
  6. Step 6: Final answer
    x = 28,982.87

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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.