Home / 39,154.50-54,033.21-22,158.45

Finding the Fourth Proportional to 39,154.50, 54,033.21 and 22,158.45

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Solution

The fourth proportional to 39,154.50, 54,033.21 and 22,158.45 is: 30,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154.50 : 54,033.21 = 22,158.45 : x
  2. Step 2: Convert to fraction form
    39,154.50/54,033.21 = 22,158.45/x
  3. Step 3: Cross multiply
    39,154.50x = 54,033.21 × 22,158.45
  4. Step 4: Simplify right side
    39,154.50x = 1,197,292,182.12
  5. Step 5: Solve for x
    x = 1,197,292,182.12/39,154.50
  6. Step 6: Final answer
    x = 30,578.66

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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.