Home / 28,791.08-43,131.20-17,665.28

Finding the Fourth Proportional to 28,791.08, 43,131.20 and 17,665.28

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Solution

The fourth proportional to 28,791.08, 43,131.20 and 17,665.28 is: 26,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.08 : 43,131.20 = 17,665.28 : x
  2. Step 2: Convert to fraction form
    28,791.08/43,131.20 = 17,665.28/x
  3. Step 3: Cross multiply
    28,791.08x = 43,131.20 × 17,665.28
  4. Step 4: Simplify right side
    28,791.08x = 761,924,724.74
  5. Step 5: Solve for x
    x = 761,924,724.74/28,791.08
  6. Step 6: Final answer
    x = 26,463.92

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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.