Home / 19,631.19-27,091.19-10,678.77

Finding the Fourth Proportional to 19,631.19, 27,091.19 and 10,678.77

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Solution

The fourth proportional to 19,631.19, 27,091.19 and 10,678.77 is: 14,736.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.19 : 27,091.19 = 10,678.77 : x
  2. Step 2: Convert to fraction form
    19,631.19/27,091.19 = 10,678.77/x
  3. Step 3: Cross multiply
    19,631.19x = 27,091.19 × 10,678.77
  4. Step 4: Simplify right side
    19,631.19x = 289,300,533.64
  5. Step 5: Solve for x
    x = 289,300,533.64/19,631.19
  6. Step 6: Final answer
    x = 14,736.78

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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.