Home / 39,187.63-54,078.45-22,191.40

Finding the Fourth Proportional to 39,187.63, 54,078.45 and 22,191.40

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Solution

The fourth proportional to 39,187.63, 54,078.45 and 22,191.40 is: 30,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.63 : 54,078.45 = 22,191.40 : x
  2. Step 2: Convert to fraction form
    39,187.63/54,078.45 = 22,191.40/x
  3. Step 3: Cross multiply
    39,187.63x = 54,078.45 × 22,191.40
  4. Step 4: Simplify right side
    39,187.63x = 1,200,076,515.33
  5. Step 5: Solve for x
    x = 1,200,076,515.33/39,187.63
  6. Step 6: Final answer
    x = 30,623.86

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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.