Home / 28,788.70-39,729.36-16,852.54

Finding the Fourth Proportional to 28,788.70, 39,729.36 and 16,852.54

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Solution

The fourth proportional to 28,788.70, 39,729.36 and 16,852.54 is: 23,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.70 : 39,729.36 = 16,852.54 : x
  2. Step 2: Convert to fraction form
    28,788.70/39,729.36 = 16,852.54/x
  3. Step 3: Cross multiply
    28,788.70x = 39,729.36 × 16,852.54
  4. Step 4: Simplify right side
    28,788.70x = 669,540,628.57
  5. Step 5: Solve for x
    x = 669,540,628.57/28,788.70
  6. Step 6: Final answer
    x = 23,257.06

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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.