Home / 38,653.20-53,341.20-21,886.20

Finding the Fourth Proportional to 38,653.20, 53,341.20 and 21,886.20

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Solution

The fourth proportional to 38,653.20, 53,341.20 and 21,886.20 is: 30,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,653.20 : 53,341.20 = 21,886.20 : x
  2. Step 2: Convert to fraction form
    38,653.20/53,341.20 = 21,886.20/x
  3. Step 3: Cross multiply
    38,653.20x = 53,341.20 × 21,886.20
  4. Step 4: Simplify right side
    38,653.20x = 1,167,436,171.44
  5. Step 5: Solve for x
    x = 1,167,436,171.44/38,653.20
  6. Step 6: Final answer
    x = 30,202.83

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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.