Home / 39,686.16-54,771.92-22,915.92

Finding the Fourth Proportional to 39,686.16, 54,771.92 and 22,915.92

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Solution

The fourth proportional to 39,686.16, 54,771.92 and 22,915.92 is: 31,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,686.16 : 54,771.92 = 22,915.92 : x
  2. Step 2: Convert to fraction form
    39,686.16/54,771.92 = 22,915.92/x
  3. Step 3: Cross multiply
    39,686.16x = 54,771.92 × 22,915.92
  4. Step 4: Simplify right side
    39,686.16x = 1,255,148,936.97
  5. Step 5: Solve for x
    x = 1,255,148,936.97/39,686.16
  6. Step 6: Final answer
    x = 31,626.87

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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.