Home / 38,898.36-53,674.38-22,128.12

Finding the Fourth Proportional to 38,898.36, 53,674.38 and 22,128.12

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Solution

The fourth proportional to 38,898.36, 53,674.38 and 22,128.12 is: 30,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.36 : 53,674.38 = 22,128.12 : x
  2. Step 2: Convert to fraction form
    38,898.36/53,674.38 = 22,128.12/x
  3. Step 3: Cross multiply
    38,898.36x = 53,674.38 × 22,128.12
  4. Step 4: Simplify right side
    38,898.36x = 1,187,713,121.57
  5. Step 5: Solve for x
    x = 1,187,713,121.57/38,898.36
  6. Step 6: Final answer
    x = 30,533.76

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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.