Home / 28,964.08-39,961.14-16,215.39

Finding the Fourth Proportional to 28,964.08, 39,961.14 and 16,215.39

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Solution

The fourth proportional to 28,964.08, 39,961.14 and 16,215.39 is: 22,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.08 : 39,961.14 = 16,215.39 : x
  2. Step 2: Convert to fraction form
    28,964.08/39,961.14 = 16,215.39/x
  3. Step 3: Cross multiply
    28,964.08x = 39,961.14 × 16,215.39
  4. Step 4: Simplify right side
    28,964.08x = 647,985,469.94
  5. Step 5: Solve for x
    x = 647,985,469.94/28,964.08
  6. Step 6: Final answer
    x = 22,372.04

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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.