Home / 28,964.33-39,961.49-16,215.64

Finding the Fourth Proportional to 28,964.33, 39,961.49 and 16,215.64

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Solution

The fourth proportional to 28,964.33, 39,961.49 and 16,215.64 is: 22,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.33 : 39,961.49 = 16,215.64 : x
  2. Step 2: Convert to fraction form
    28,964.33/39,961.49 = 16,215.64/x
  3. Step 3: Cross multiply
    28,964.33x = 39,961.49 × 16,215.64
  4. Step 4: Simplify right side
    28,964.33x = 648,000,954.72
  5. Step 5: Solve for x
    x = 648,000,954.72/28,964.33
  6. Step 6: Final answer
    x = 22,372.38

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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.