Home / 19,558.78-29,323.59-11,765.77

Finding the Fourth Proportional to 19,558.78, 29,323.59 and 11,765.77

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Solution

The fourth proportional to 19,558.78, 29,323.59 and 11,765.77 is: 17,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.78 : 29,323.59 = 11,765.77 : x
  2. Step 2: Convert to fraction form
    19,558.78/29,323.59 = 11,765.77/x
  3. Step 3: Cross multiply
    19,558.78x = 29,323.59 × 11,765.77
  4. Step 4: Simplify right side
    19,558.78x = 345,014,615.51
  5. Step 5: Solve for x
    x = 345,014,615.51/19,558.78
  6. Step 6: Final answer
    x = 17,639.88

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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.