Home / 38,771.08-53,499.84-21,771.88

Finding the Fourth Proportional to 38,771.08, 53,499.84 and 21,771.88

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Solution

The fourth proportional to 38,771.08, 53,499.84 and 21,771.88 is: 30,042.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,771.08 : 53,499.84 = 21,771.88 : x
  2. Step 2: Convert to fraction form
    38,771.08/53,499.84 = 21,771.88/x
  3. Step 3: Cross multiply
    38,771.08x = 53,499.84 × 21,771.88
  4. Step 4: Simplify right side
    38,771.08x = 1,164,792,096.50
  5. Step 5: Solve for x
    x = 1,164,792,096.50/38,771.08
  6. Step 6: Final answer
    x = 30,042.81

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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.