Home / 39,178.98-54,066.20-22,186.44

Finding the Fourth Proportional to 39,178.98, 54,066.20 and 22,186.44

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Solution

The fourth proportional to 39,178.98, 54,066.20 and 22,186.44 is: 30,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,178.98 : 54,066.20 = 22,186.44 : x
  2. Step 2: Convert to fraction form
    39,178.98/54,066.20 = 22,186.44/x
  3. Step 3: Cross multiply
    39,178.98x = 54,066.20 × 22,186.44
  4. Step 4: Simplify right side
    39,178.98x = 1,199,536,391.40
  5. Step 5: Solve for x
    x = 1,199,536,391.40/39,178.98
  6. Step 6: Final answer
    x = 30,616.84

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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.