Home / 28,471.25-42,640.40-22,508.06

Finding the Fourth Proportional to 28,471.25, 42,640.40 and 22,508.06

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Solution

The fourth proportional to 28,471.25, 42,640.40 and 22,508.06 is: 33,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471.25 : 42,640.40 = 22,508.06 : x
  2. Step 2: Convert to fraction form
    28,471.25/42,640.40 = 22,508.06/x
  3. Step 3: Cross multiply
    28,471.25x = 42,640.40 × 22,508.06
  4. Step 4: Simplify right side
    28,471.25x = 959,752,462.48
  5. Step 5: Solve for x
    x = 959,752,462.48/28,471.25
  6. Step 6: Final answer
    x = 33,709.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.