Home / 30,086.78-41,521.28-16,659.51

Finding the Fourth Proportional to 30,086.78, 41,521.28 and 16,659.51

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Solution

The fourth proportional to 30,086.78, 41,521.28 and 16,659.51 is: 22,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.78 : 41,521.28 = 16,659.51 : x
  2. Step 2: Convert to fraction form
    30,086.78/41,521.28 = 16,659.51/x
  3. Step 3: Cross multiply
    30,086.78x = 41,521.28 × 16,659.51
  4. Step 4: Simplify right side
    30,086.78x = 691,724,096.08
  5. Step 5: Solve for x
    x = 691,724,096.08/30,086.78
  6. Step 6: Final answer
    x = 22,990.97

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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.