Home / 38,863.64-53,630.60-21,868.85

Finding the Fourth Proportional to 38,863.64, 53,630.60 and 21,868.85

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Solution

The fourth proportional to 38,863.64, 53,630.60 and 21,868.85 is: 30,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,863.64 : 53,630.60 = 21,868.85 : x
  2. Step 2: Convert to fraction form
    38,863.64/53,630.60 = 21,868.85/x
  3. Step 3: Cross multiply
    38,863.64x = 53,630.60 × 21,868.85
  4. Step 4: Simplify right side
    38,863.64x = 1,172,839,169.31
  5. Step 5: Solve for x
    x = 1,172,839,169.31/38,863.64
  6. Step 6: Final answer
    x = 30,178.32

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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.