Home / 38,182.73-52,690.35-21,186.78

Finding the Fourth Proportional to 38,182.73, 52,690.35 and 21,186.78

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Solution

The fourth proportional to 38,182.73, 52,690.35 and 21,186.78 is: 29,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,182.73 : 52,690.35 = 21,186.78 : x
  2. Step 2: Convert to fraction form
    38,182.73/52,690.35 = 21,186.78/x
  3. Step 3: Cross multiply
    38,182.73x = 52,690.35 × 21,186.78
  4. Step 4: Simplify right side
    38,182.73x = 1,116,338,853.57
  5. Step 5: Solve for x
    x = 1,116,338,853.57/38,182.73
  6. Step 6: Final answer
    x = 29,236.75

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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.