Home / 39,189.90-54,085.40-22,197.17

Finding the Fourth Proportional to 39,189.90, 54,085.40 and 22,197.17

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Solution

The fourth proportional to 39,189.90, 54,085.40 and 22,197.17 is: 30,633.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,189.90 : 54,085.40 = 22,197.17 : x
  2. Step 2: Convert to fraction form
    39,189.90/54,085.40 = 22,197.17/x
  3. Step 3: Cross multiply
    39,189.90x = 54,085.40 × 22,197.17
  4. Step 4: Simplify right side
    39,189.90x = 1,200,542,818.32
  5. Step 5: Solve for x
    x = 1,200,542,818.32/39,189.90
  6. Step 6: Final answer
    x = 30,633.99

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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.