Home / 28,643.63-42,976.37-11,114.82

Finding the Fourth Proportional to 28,643.63, 42,976.37 and 11,114.82

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Solution

The fourth proportional to 28,643.63, 42,976.37 and 11,114.82 is: 16,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.63 : 42,976.37 = 11,114.82 : x
  2. Step 2: Convert to fraction form
    28,643.63/42,976.37 = 11,114.82/x
  3. Step 3: Cross multiply
    28,643.63x = 42,976.37 × 11,114.82
  4. Step 4: Simplify right side
    28,643.63x = 477,674,644.59
  5. Step 5: Solve for x
    x = 477,674,644.59/28,643.63
  6. Step 6: Final answer
    x = 16,676.47

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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.