Home / 28,868.25-43,303.56-9,146.37

Finding the Fourth Proportional to 28,868.25, 43,303.56 and 9,146.37

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Solution

The fourth proportional to 28,868.25, 43,303.56 and 9,146.37 is: 13,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.25 : 43,303.56 = 9,146.37 : x
  2. Step 2: Convert to fraction form
    28,868.25/43,303.56 = 9,146.37/x
  3. Step 3: Cross multiply
    28,868.25x = 43,303.56 × 9,146.37
  4. Step 4: Simplify right side
    28,868.25x = 396,070,382.08
  5. Step 5: Solve for x
    x = 396,070,382.08/28,868.25
  6. Step 6: Final answer
    x = 13,719.93

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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.