Home / 28,018.64-38,664.32-16,081.66

Finding the Fourth Proportional to 28,018.64, 38,664.32 and 16,081.66

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Solution

The fourth proportional to 28,018.64, 38,664.32 and 16,081.66 is: 22,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.64 : 38,664.32 = 16,081.66 : x
  2. Step 2: Convert to fraction form
    28,018.64/38,664.32 = 16,081.66/x
  3. Step 3: Cross multiply
    28,018.64x = 38,664.32 × 16,081.66
  4. Step 4: Simplify right side
    28,018.64x = 621,786,448.37
  5. Step 5: Solve for x
    x = 621,786,448.37/28,018.64
  6. Step 6: Final answer
    x = 22,191.89

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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.