Home / 28,972.80-43,394.40-23,140.80

Finding the Fourth Proportional to 28,972.80, 43,394.40 and 23,140.80

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Solution

The fourth proportional to 28,972.80, 43,394.40 and 23,140.80 is: 34,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.80 : 43,394.40 = 23,140.80 : x
  2. Step 2: Convert to fraction form
    28,972.80/43,394.40 = 23,140.80/x
  3. Step 3: Cross multiply
    28,972.80x = 43,394.40 × 23,140.80
  4. Step 4: Simplify right side
    28,972.80x = 1,004,181,131.52
  5. Step 5: Solve for x
    x = 1,004,181,131.52/28,972.80
  6. Step 6: Final answer
    x = 34,659.44

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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.