Home / 28,673.12-43,015.82-9,953.75

Finding the Fourth Proportional to 28,673.12, 43,015.82 and 9,953.75

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Solution

The fourth proportional to 28,673.12, 43,015.82 and 9,953.75 is: 14,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.12 : 43,015.82 = 9,953.75 : x
  2. Step 2: Convert to fraction form
    28,673.12/43,015.82 = 9,953.75/x
  3. Step 3: Cross multiply
    28,673.12x = 43,015.82 × 9,953.75
  4. Step 4: Simplify right side
    28,673.12x = 428,168,453.48
  5. Step 5: Solve for x
    x = 428,168,453.48/28,673.12
  6. Step 6: Final answer
    x = 14,932.75

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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.