Home / 38,436.58-53,042.88-21,442.38

Finding the Fourth Proportional to 38,436.58, 53,042.88 and 21,442.38

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Solution

The fourth proportional to 38,436.58, 53,042.88 and 21,442.38 is: 29,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436.58 : 53,042.88 = 21,442.38 : x
  2. Step 2: Convert to fraction form
    38,436.58/53,042.88 = 21,442.38/x
  3. Step 3: Cross multiply
    38,436.58x = 53,042.88 × 21,442.38
  4. Step 4: Simplify right side
    38,436.58x = 1,137,365,589.25
  5. Step 5: Solve for x
    x = 1,137,365,589.25/38,436.58
  6. Step 6: Final answer
    x = 29,590.71

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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.