Home / 28,722.24-39,638.70-16,786.89

Finding the Fourth Proportional to 28,722.24, 39,638.70 and 16,786.89

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Solution

The fourth proportional to 28,722.24, 39,638.70 and 16,786.89 is: 23,167.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.24 : 39,638.70 = 16,786.89 : x
  2. Step 2: Convert to fraction form
    28,722.24/39,638.70 = 16,786.89/x
  3. Step 3: Cross multiply
    28,722.24x = 39,638.70 × 16,786.89
  4. Step 4: Simplify right side
    28,722.24x = 665,410,496.64
  5. Step 5: Solve for x
    x = 665,410,496.64/28,722.24
  6. Step 6: Final answer
    x = 23,167.08

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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.