Home / 39,081.30-53,932.41-21,176.32

Finding the Fourth Proportional to 39,081.30, 53,932.41 and 21,176.32

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Solution

The fourth proportional to 39,081.30, 53,932.41 and 21,176.32 is: 29,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,081.30 : 53,932.41 = 21,176.32 : x
  2. Step 2: Convert to fraction form
    39,081.30/53,932.41 = 21,176.32/x
  3. Step 3: Cross multiply
    39,081.30x = 53,932.41 × 21,176.32
  4. Step 4: Simplify right side
    39,081.30x = 1,142,089,972.53
  5. Step 5: Solve for x
    x = 1,142,089,972.53/39,081.30
  6. Step 6: Final answer
    x = 29,223.44

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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.