Home / 18,380.40-25,312.16-17,254.56

Finding the Fourth Proportional to 18,380.40, 25,312.16 and 17,254.56

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Solution

The fourth proportional to 18,380.40, 25,312.16 and 17,254.56 is: 23,761.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.40 : 25,312.16 = 17,254.56 : x
  2. Step 2: Convert to fraction form
    18,380.40/25,312.16 = 17,254.56/x
  3. Step 3: Cross multiply
    18,380.40x = 25,312.16 × 17,254.56
  4. Step 4: Simplify right side
    18,380.40x = 436,750,183.45
  5. Step 5: Solve for x
    x = 436,750,183.45/18,380.40
  6. Step 6: Final answer
    x = 23,761.73

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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.