Home / 19,678.32-27,157.68-11,295.36

Finding the Fourth Proportional to 19,678.32, 27,157.68 and 11,295.36

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Solution

The fourth proportional to 19,678.32, 27,157.68 and 11,295.36 is: 15,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.32 : 27,157.68 = 11,295.36 : x
  2. Step 2: Convert to fraction form
    19,678.32/27,157.68 = 11,295.36/x
  3. Step 3: Cross multiply
    19,678.32x = 27,157.68 × 11,295.36
  4. Step 4: Simplify right side
    19,678.32x = 306,755,772.36
  5. Step 5: Solve for x
    x = 306,755,772.36/19,678.32
  6. Step 6: Final answer
    x = 15,588.51

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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.