Home / 28,965.76-39,967.68-17,791.36

Finding the Fourth Proportional to 28,965.76, 39,967.68 and 17,791.36

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Solution

The fourth proportional to 28,965.76, 39,967.68 and 17,791.36 is: 24,548.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.76 : 39,967.68 = 17,791.36 : x
  2. Step 2: Convert to fraction form
    28,965.76/39,967.68 = 17,791.36/x
  3. Step 3: Cross multiply
    28,965.76x = 39,967.68 × 17,791.36
  4. Step 4: Simplify right side
    28,965.76x = 711,079,383.24
  5. Step 5: Solve for x
    x = 711,079,383.24/28,965.76
  6. Step 6: Final answer
    x = 24,548.96

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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.