Home / 19,405.16-29,033.92-11,991.23

Finding the Fourth Proportional to 19,405.16, 29,033.92 and 11,991.23

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Solution

The fourth proportional to 19,405.16, 29,033.92 and 11,991.23 is: 17,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.16 : 29,033.92 = 11,991.23 : x
  2. Step 2: Convert to fraction form
    19,405.16/29,033.92 = 11,991.23/x
  3. Step 3: Cross multiply
    19,405.16x = 29,033.92 × 11,991.23
  4. Step 4: Simplify right side
    19,405.16x = 348,152,412.52
  5. Step 5: Solve for x
    x = 348,152,412.52/19,405.16
  6. Step 6: Final answer
    x = 17,941.23

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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.