Home / 38,736.11-53,453.59-21,738.77

Finding the Fourth Proportional to 38,736.11, 53,453.59 and 21,738.77

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Solution

The fourth proportional to 38,736.11, 53,453.59 and 21,738.77 is: 29,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,736.11 : 53,453.59 = 21,738.77 : x
  2. Step 2: Convert to fraction form
    38,736.11/53,453.59 = 21,738.77/x
  3. Step 3: Cross multiply
    38,736.11x = 53,453.59 × 21,738.77
  4. Step 4: Simplify right side
    38,736.11x = 1,162,015,325.86
  5. Step 5: Solve for x
    x = 1,162,015,325.86/38,736.11
  6. Step 6: Final answer
    x = 29,998.24

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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.