Home / 24,417.60-33,638.40-20,140.80

Finding the Fourth Proportional to 24,417.60, 33,638.40 and 20,140.80

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Solution

The fourth proportional to 24,417.60, 33,638.40 and 20,140.80 is: 27,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,417.60 : 33,638.40 = 20,140.80 : x
  2. Step 2: Convert to fraction form
    24,417.60/33,638.40 = 20,140.80/x
  3. Step 3: Cross multiply
    24,417.60x = 33,638.40 × 20,140.80
  4. Step 4: Simplify right side
    24,417.60x = 677,504,286.72
  5. Step 5: Solve for x
    x = 677,504,286.72/24,417.60
  6. Step 6: Final answer
    x = 27,746.56

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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.