Home / 19,698.40-27,182.87-11,200.32

Finding the Fourth Proportional to 19,698.40, 27,182.87 and 11,200.32

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Solution

The fourth proportional to 19,698.40, 27,182.87 and 11,200.32 is: 15,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.40 : 27,182.87 = 11,200.32 : x
  2. Step 2: Convert to fraction form
    19,698.40/27,182.87 = 11,200.32/x
  3. Step 3: Cross multiply
    19,698.40x = 27,182.87 × 11,200.32
  4. Step 4: Simplify right side
    19,698.40x = 304,456,842.52
  5. Step 5: Solve for x
    x = 304,456,842.52/19,698.40
  6. Step 6: Final answer
    x = 15,455.92

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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.