Home / 39,838.04-54,975.42-21,933.18

Finding the Fourth Proportional to 39,838.04, 54,975.42 and 21,933.18

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Solution

The fourth proportional to 39,838.04, 54,975.42 and 21,933.18 is: 30,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,838.04 : 54,975.42 = 21,933.18 : x
  2. Step 2: Convert to fraction form
    39,838.04/54,975.42 = 21,933.18/x
  3. Step 3: Cross multiply
    39,838.04x = 54,975.42 × 21,933.18
  4. Step 4: Simplify right side
    39,838.04x = 1,205,785,782.44
  5. Step 5: Solve for x
    x = 1,205,785,782.44/39,838.04
  6. Step 6: Final answer
    x = 30,267.20

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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.