Home / 38,938.58-53,735.21-21,033.59

Finding the Fourth Proportional to 38,938.58, 53,735.21 and 21,033.59

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Solution

The fourth proportional to 38,938.58, 53,735.21 and 21,033.59 is: 29,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,938.58 : 53,735.21 = 21,033.59 : x
  2. Step 2: Convert to fraction form
    38,938.58/53,735.21 = 21,033.59/x
  3. Step 3: Cross multiply
    38,938.58x = 53,735.21 × 21,033.59
  4. Step 4: Simplify right side
    38,938.58x = 1,130,244,199.05
  5. Step 5: Solve for x
    x = 1,130,244,199.05/38,938.58
  6. Step 6: Final answer
    x = 29,026.33

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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.