Home / 19,859.51-29,784.73-11,856.54

Finding the Fourth Proportional to 19,859.51, 29,784.73 and 11,856.54

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Solution

The fourth proportional to 19,859.51, 29,784.73 and 11,856.54 is: 17,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.51 : 29,784.73 = 11,856.54 : x
  2. Step 2: Convert to fraction form
    19,859.51/29,784.73 = 11,856.54/x
  3. Step 3: Cross multiply
    19,859.51x = 29,784.73 × 11,856.54
  4. Step 4: Simplify right side
    19,859.51x = 353,143,842.63
  5. Step 5: Solve for x
    x = 353,143,842.63/19,859.51
  6. Step 6: Final answer
    x = 17,782.10

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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.