Home / 25,599.60-38,435.24-13,128.44

Finding the Fourth Proportional to 25,599.60, 38,435.24 and 13,128.44

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Solution

The fourth proportional to 25,599.60, 38,435.24 and 13,128.44 is: 19,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,599.60 : 38,435.24 = 13,128.44 : x
  2. Step 2: Convert to fraction form
    25,599.60/38,435.24 = 13,128.44/x
  3. Step 3: Cross multiply
    25,599.60x = 38,435.24 × 13,128.44
  4. Step 4: Simplify right side
    25,599.60x = 504,594,484.41
  5. Step 5: Solve for x
    x = 504,594,484.41/25,599.60
  6. Step 6: Final answer
    x = 19,711.03

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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.