Home / 20,757.37-28,651.31-14,471.77

Finding the Fourth Proportional to 20,757.37, 28,651.31 and 14,471.77

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Solution

The fourth proportional to 20,757.37, 28,651.31 and 14,471.77 is: 19,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.37 : 28,651.31 = 14,471.77 : x
  2. Step 2: Convert to fraction form
    20,757.37/28,651.31 = 14,471.77/x
  3. Step 3: Cross multiply
    20,757.37x = 28,651.31 × 14,471.77
  4. Step 4: Simplify right side
    20,757.37x = 414,635,168.52
  5. Step 5: Solve for x
    x = 414,635,168.52/20,757.37
  6. Step 6: Final answer
    x = 19,975.32

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1.5x scale

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.