Home / 19,699.98-29,550.38-10,990.32

Finding the Fourth Proportional to 19,699.98, 29,550.38 and 10,990.32

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Solution

The fourth proportional to 19,699.98, 29,550.38 and 10,990.32 is: 16,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.98 : 29,550.38 = 10,990.32 : x
  2. Step 2: Convert to fraction form
    19,699.98/29,550.38 = 10,990.32/x
  3. Step 3: Cross multiply
    19,699.98x = 29,550.38 × 10,990.32
  4. Step 4: Simplify right side
    19,699.98x = 324,768,077.37
  5. Step 5: Solve for x
    x = 324,768,077.37/19,699.98
  6. Step 6: Final answer
    x = 16,485.71

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1.5x scale

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.