Home / 38,828.43-53,576.01-21,830.49

Finding the Fourth Proportional to 38,828.43, 53,576.01 and 21,830.49

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Solution

The fourth proportional to 38,828.43, 53,576.01 and 21,830.49 is: 30,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,828.43 : 53,576.01 = 21,830.49 : x
  2. Step 2: Convert to fraction form
    38,828.43/53,576.01 = 21,830.49/x
  3. Step 3: Cross multiply
    38,828.43x = 53,576.01 × 21,830.49
  4. Step 4: Simplify right side
    38,828.43x = 1,169,590,550.54
  5. Step 5: Solve for x
    x = 1,169,590,550.54/38,828.43
  6. Step 6: Final answer
    x = 30,122.01

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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.