Home / 25,449.21-38,173.82-13,785.21

Finding the Fourth Proportional to 25,449.21, 38,173.82 and 13,785.21

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Solution

The fourth proportional to 25,449.21, 38,173.82 and 13,785.21 is: 20,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,449.21 : 38,173.82 = 13,785.21 : x
  2. Step 2: Convert to fraction form
    25,449.21/38,173.82 = 13,785.21/x
  3. Step 3: Cross multiply
    25,449.21x = 38,173.82 × 13,785.21
  4. Step 4: Simplify right side
    25,449.21x = 526,234,056.28
  5. Step 5: Solve for x
    x = 526,234,056.28/25,449.21
  6. Step 6: Final answer
    x = 20,677.82

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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.