Home / 16,851.60-25,261.20-13,101.30

Finding the Fourth Proportional to 16,851.60, 25,261.20 and 13,101.30

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Solution

The fourth proportional to 16,851.60, 25,261.20 and 13,101.30 is: 19,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,851.60 : 25,261.20 = 13,101.30 : x
  2. Step 2: Convert to fraction form
    16,851.60/25,261.20 = 13,101.30/x
  3. Step 3: Cross multiply
    16,851.60x = 25,261.20 × 13,101.30
  4. Step 4: Simplify right side
    16,851.60x = 330,954,559.56
  5. Step 5: Solve for x
    x = 330,954,559.56/16,851.60
  6. Step 6: Final answer
    x = 19,639.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.