Home / 38,722.44-53,436.72-21,494.62

Finding the Fourth Proportional to 38,722.44, 53,436.72 and 21,494.62

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Solution

The fourth proportional to 38,722.44, 53,436.72 and 21,494.62 is: 29,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,722.44 : 53,436.72 = 21,494.62 : x
  2. Step 2: Convert to fraction form
    38,722.44/53,436.72 = 21,494.62/x
  3. Step 3: Cross multiply
    38,722.44x = 53,436.72 × 21,494.62
  4. Step 4: Simplify right side
    38,722.44x = 1,148,601,990.45
  5. Step 5: Solve for x
    x = 1,148,601,990.45/38,722.44
  6. Step 6: Final answer
    x = 29,662.44

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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.