Home / 28,633.54-42,967.11-11,992.29

Finding the Fourth Proportional to 28,633.54, 42,967.11 and 11,992.29

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Solution

The fourth proportional to 28,633.54, 42,967.11 and 11,992.29 is: 17,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.54 : 42,967.11 = 11,992.29 : x
  2. Step 2: Convert to fraction form
    28,633.54/42,967.11 = 11,992.29/x
  3. Step 3: Cross multiply
    28,633.54x = 42,967.11 × 11,992.29
  4. Step 4: Simplify right side
    28,633.54x = 515,274,043.58
  5. Step 5: Solve for x
    x = 515,274,043.58/28,633.54
  6. Step 6: Final answer
    x = 17,995.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.