Home / 19,859.06-27,405.98-10,784.80

Finding the Fourth Proportional to 19,859.06, 27,405.98 and 10,784.80

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Solution

The fourth proportional to 19,859.06, 27,405.98 and 10,784.80 is: 14,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.06 : 27,405.98 = 10,784.80 : x
  2. Step 2: Convert to fraction form
    19,859.06/27,405.98 = 10,784.80/x
  3. Step 3: Cross multiply
    19,859.06x = 27,405.98 × 10,784.80
  4. Step 4: Simplify right side
    19,859.06x = 295,568,013.10
  5. Step 5: Solve for x
    x = 295,568,013.10/19,859.06
  6. Step 6: Final answer
    x = 14,883.28

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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.