Home / 28,845.47-43,268.22-11,320.31

Finding the Fourth Proportional to 28,845.47, 43,268.22 and 11,320.31

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Solution

The fourth proportional to 28,845.47, 43,268.22 and 11,320.31 is: 16,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.47 : 43,268.22 = 11,320.31 : x
  2. Step 2: Convert to fraction form
    28,845.47/43,268.22 = 11,320.31/x
  3. Step 3: Cross multiply
    28,845.47x = 43,268.22 × 11,320.31
  4. Step 4: Simplify right side
    28,845.47x = 489,809,663.55
  5. Step 5: Solve for x
    x = 489,809,663.55/28,845.47
  6. Step 6: Final answer
    x = 16,980.47

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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.