Home / 38,179.16-52,690.12-21,186.62

Finding the Fourth Proportional to 38,179.16, 52,690.12 and 21,186.62

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Solution

The fourth proportional to 38,179.16, 52,690.12 and 21,186.62 is: 29,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179.16 : 52,690.12 = 21,186.62 : x
  2. Step 2: Convert to fraction form
    38,179.16/52,690.12 = 21,186.62/x
  3. Step 3: Cross multiply
    38,179.16x = 52,690.12 × 21,186.62
  4. Step 4: Simplify right side
    38,179.16x = 1,116,325,286.74
  5. Step 5: Solve for x
    x = 1,116,325,286.74/38,179.16
  6. Step 6: Final answer
    x = 29,239.13

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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.