Home / 38,453.83-53,064.25-21,685.75

Finding the Fourth Proportional to 38,453.83, 53,064.25 and 21,685.75

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Solution

The fourth proportional to 38,453.83, 53,064.25 and 21,685.75 is: 29,925.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,453.83 : 53,064.25 = 21,685.75 : x
  2. Step 2: Convert to fraction form
    38,453.83/53,064.25 = 21,685.75/x
  3. Step 3: Cross multiply
    38,453.83x = 53,064.25 × 21,685.75
  4. Step 4: Simplify right side
    38,453.83x = 1,150,738,059.44
  5. Step 5: Solve for x
    x = 1,150,738,059.44/38,453.83
  6. Step 6: Final answer
    x = 29,925.19

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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.