Home / 38,783.26-53,515.07-21,784.25

Finding the Fourth Proportional to 38,783.26, 53,515.07 and 21,784.25

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Solution

The fourth proportional to 38,783.26, 53,515.07 and 21,784.25 is: 30,058.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,783.26 : 53,515.07 = 21,784.25 : x
  2. Step 2: Convert to fraction form
    38,783.26/53,515.07 = 21,784.25/x
  3. Step 3: Cross multiply
    38,783.26x = 53,515.07 × 21,784.25
  4. Step 4: Simplify right side
    38,783.26x = 1,165,785,287.15
  5. Step 5: Solve for x
    x = 1,165,785,287.15/38,783.26
  6. Step 6: Final answer
    x = 30,058.98

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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.