Home / 28,976.48-39,986.16-17,796.32

Finding the Fourth Proportional to 28,976.48, 39,986.16 and 17,796.32

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Solution

The fourth proportional to 28,976.48, 39,986.16 and 17,796.32 is: 24,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.48 : 39,986.16 = 17,796.32 : x
  2. Step 2: Convert to fraction form
    28,976.48/39,986.16 = 17,796.32/x
  3. Step 3: Cross multiply
    28,976.48x = 39,986.16 × 17,796.32
  4. Step 4: Simplify right side
    28,976.48x = 711,606,498.93
  5. Step 5: Solve for x
    x = 711,606,498.93/28,976.48
  6. Step 6: Final answer
    x = 24,558.07

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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.