Home / 38,839.80-53,592.30-21,839.64

Finding the Fourth Proportional to 38,839.80, 53,592.30 and 21,839.64

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Solution

The fourth proportional to 38,839.80, 53,592.30 and 21,839.64 is: 30,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,839.80 : 53,592.30 = 21,839.64 : x
  2. Step 2: Convert to fraction form
    38,839.80/53,592.30 = 21,839.64/x
  3. Step 3: Cross multiply
    38,839.80x = 53,592.30 × 21,839.64
  4. Step 4: Simplify right side
    38,839.80x = 1,170,436,538.77
  5. Step 5: Solve for x
    x = 1,170,436,538.77/38,839.80
  6. Step 6: Final answer
    x = 30,134.98

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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.