Home / 38,449.84-53,059.29-21,453.20

Finding the Fourth Proportional to 38,449.84, 53,059.29 and 21,453.20

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Solution

The fourth proportional to 38,449.84, 53,059.29 and 21,453.20 is: 29,604.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,449.84 : 53,059.29 = 21,453.20 : x
  2. Step 2: Convert to fraction form
    38,449.84/53,059.29 = 21,453.20/x
  3. Step 3: Cross multiply
    38,449.84x = 53,059.29 × 21,453.20
  4. Step 4: Simplify right side
    38,449.84x = 1,138,291,560.23
  5. Step 5: Solve for x
    x = 1,138,291,560.23/38,449.84
  6. Step 6: Final answer
    x = 29,604.59

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Half scale
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Double scale
Find fourth proportional to 38,450.84, 53,060.67 and 21,454.20
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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.