Home / 18,411.96-25,408.80-10,028.48

Finding the Fourth Proportional to 18,411.96, 25,408.80 and 10,028.48

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Solution

The fourth proportional to 18,411.96, 25,408.80 and 10,028.48 is: 13,839.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.96 : 25,408.80 = 10,028.48 : x
  2. Step 2: Convert to fraction form
    18,411.96/25,408.80 = 10,028.48/x
  3. Step 3: Cross multiply
    18,411.96x = 25,408.80 × 10,028.48
  4. Step 4: Simplify right side
    18,411.96x = 254,811,642.62
  5. Step 5: Solve for x
    x = 254,811,642.62/18,411.96
  6. Step 6: Final answer
    x = 13,839.46

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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.