Home / 38,418.78-53,012.22-22,285.38

Finding the Fourth Proportional to 38,418.78, 53,012.22 and 22,285.38

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Solution

The fourth proportional to 38,418.78, 53,012.22 and 22,285.38 is: 30,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,418.78 : 53,012.22 = 22,285.38 : x
  2. Step 2: Convert to fraction form
    38,418.78/53,012.22 = 22,285.38/x
  3. Step 3: Cross multiply
    38,418.78x = 53,012.22 × 22,285.38
  4. Step 4: Simplify right side
    38,418.78x = 1,181,397,467.34
  5. Step 5: Solve for x
    x = 1,181,397,467.34/38,418.78
  6. Step 6: Final answer
    x = 30,750.52

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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.