Home / 28,550.44-42,825.66-11,918.31

Finding the Fourth Proportional to 28,550.44, 42,825.66 and 11,918.31

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Solution

The fourth proportional to 28,550.44, 42,825.66 and 11,918.31 is: 17,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.44 : 42,825.66 = 11,918.31 : x
  2. Step 2: Convert to fraction form
    28,550.44/42,825.66 = 11,918.31/x
  3. Step 3: Cross multiply
    28,550.44x = 42,825.66 × 11,918.31
  4. Step 4: Simplify right side
    28,550.44x = 510,409,491.83
  5. Step 5: Solve for x
    x = 510,409,491.83/28,550.44
  6. Step 6: Final answer
    x = 17,877.47

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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.