Home / 20,268.66-27,984.59-13,207.39

Finding the Fourth Proportional to 20,268.66, 27,984.59 and 13,207.39

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Solution

The fourth proportional to 20,268.66, 27,984.59 and 13,207.39 is: 18,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.66 : 27,984.59 = 13,207.39 : x
  2. Step 2: Convert to fraction form
    20,268.66/27,984.59 = 13,207.39/x
  3. Step 3: Cross multiply
    20,268.66x = 27,984.59 × 13,207.39
  4. Step 4: Simplify right side
    20,268.66x = 369,603,307.65
  5. Step 5: Solve for x
    x = 369,603,307.65/20,268.66
  6. Step 6: Final answer
    x = 18,235.21

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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.