Home / 19,701.33-27,181.74-12,984.57

Finding the Fourth Proportional to 19,701.33, 27,181.74 and 12,984.57

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Solution

The fourth proportional to 19,701.33, 27,181.74 and 12,984.57 is: 17,914.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.33 : 27,181.74 = 12,984.57 : x
  2. Step 2: Convert to fraction form
    19,701.33/27,181.74 = 12,984.57/x
  3. Step 3: Cross multiply
    19,701.33x = 27,181.74 × 12,984.57
  4. Step 4: Simplify right side
    19,701.33x = 352,943,205.75
  5. Step 5: Solve for x
    x = 352,943,205.75/19,701.33
  6. Step 6: Final answer
    x = 17,914.69

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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.