Home / 18,231.31-25,152.78-13,983.67

Finding the Fourth Proportional to 18,231.31, 25,152.78 and 13,983.67

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Solution

The fourth proportional to 18,231.31, 25,152.78 and 13,983.67 is: 19,292.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.31 : 25,152.78 = 13,983.67 : x
  2. Step 2: Convert to fraction form
    18,231.31/25,152.78 = 13,983.67/x
  3. Step 3: Cross multiply
    18,231.31x = 25,152.78 × 13,983.67
  4. Step 4: Simplify right side
    18,231.31x = 351,728,175.10
  5. Step 5: Solve for x
    x = 351,728,175.10/18,231.31
  6. Step 6: Final answer
    x = 19,292.53

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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.