Home / 20,075.09-27,659.02-13,257.00

Finding the Fourth Proportional to 20,075.09, 27,659.02 and 13,257.00

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Solution

The fourth proportional to 20,075.09, 27,659.02 and 13,257.00 is: 18,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.09 : 27,659.02 = 13,257.00 : x
  2. Step 2: Convert to fraction form
    20,075.09/27,659.02 = 13,257.00/x
  3. Step 3: Cross multiply
    20,075.09x = 27,659.02 × 13,257.00
  4. Step 4: Simplify right side
    20,075.09x = 366,675,736.54
  5. Step 5: Solve for x
    x = 366,675,736.54/20,075.09
  6. Step 6: Final answer
    x = 18,265.21

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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.