Home / 38,605.43-53,276.40-21,609.25

Finding the Fourth Proportional to 38,605.43, 53,276.40 and 21,609.25

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Solution

The fourth proportional to 38,605.43, 53,276.40 and 21,609.25 is: 29,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,605.43 : 53,276.40 = 21,609.25 : x
  2. Step 2: Convert to fraction form
    38,605.43/53,276.40 = 21,609.25/x
  3. Step 3: Cross multiply
    38,605.43x = 53,276.40 × 21,609.25
  4. Step 4: Simplify right side
    38,605.43x = 1,151,263,125.87
  5. Step 5: Solve for x
    x = 1,151,263,125.87/38,605.43
  6. Step 6: Final answer
    x = 29,821.27

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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.