Home / 39,520.98-54,540.54-21,616.74

Finding the Fourth Proportional to 39,520.98, 54,540.54 and 21,616.74

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Solution

The fourth proportional to 39,520.98, 54,540.54 and 21,616.74 is: 29,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,520.98 : 54,540.54 = 21,616.74 : x
  2. Step 2: Convert to fraction form
    39,520.98/54,540.54 = 21,616.74/x
  3. Step 3: Cross multiply
    39,520.98x = 54,540.54 × 21,616.74
  4. Step 4: Simplify right side
    39,520.98x = 1,178,988,672.64
  5. Step 5: Solve for x
    x = 1,178,988,672.64/39,520.98
  6. Step 6: Final answer
    x = 29,831.97

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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.