Home / 28,081.77-38,751.26-16,764.05

Finding the Fourth Proportional to 28,081.77, 38,751.26 and 16,764.05

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Solution

The fourth proportional to 28,081.77, 38,751.26 and 16,764.05 is: 23,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.77 : 38,751.26 = 16,764.05 : x
  2. Step 2: Convert to fraction form
    28,081.77/38,751.26 = 16,764.05/x
  3. Step 3: Cross multiply
    28,081.77x = 38,751.26 × 16,764.05
  4. Step 4: Simplify right side
    28,081.77x = 649,627,782.63
  5. Step 5: Solve for x
    x = 649,627,782.63/28,081.77
  6. Step 6: Final answer
    x = 23,133.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.