Home / 20,573.87-28,391.73-11,621.35

Finding the Fourth Proportional to 20,573.87, 28,391.73 and 11,621.35

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Solution

The fourth proportional to 20,573.87, 28,391.73 and 11,621.35 is: 16,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.87 : 28,391.73 = 11,621.35 : x
  2. Step 2: Convert to fraction form
    20,573.87/28,391.73 = 11,621.35/x
  3. Step 3: Cross multiply
    20,573.87x = 28,391.73 × 11,621.35
  4. Step 4: Simplify right side
    20,573.87x = 329,950,231.44
  5. Step 5: Solve for x
    x = 329,950,231.44/20,573.87
  6. Step 6: Final answer
    x = 16,037.34

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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.