Home / 19,090.47-28,653.95-11,709.36

Finding the Fourth Proportional to 19,090.47, 28,653.95 and 11,709.36

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Solution

The fourth proportional to 19,090.47, 28,653.95 and 11,709.36 is: 17,575.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.47 : 28,653.95 = 11,709.36 : x
  2. Step 2: Convert to fraction form
    19,090.47/28,653.95 = 11,709.36/x
  3. Step 3: Cross multiply
    19,090.47x = 28,653.95 × 11,709.36
  4. Step 4: Simplify right side
    19,090.47x = 335,519,357.43
  5. Step 5: Solve for x
    x = 335,519,357.43/19,090.47
  6. Step 6: Final answer
    x = 17,575.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.