Home / 25,657.82-38,486.70-18,682.21

Finding the Fourth Proportional to 25,657.82, 38,486.70 and 18,682.21

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Solution

The fourth proportional to 25,657.82, 38,486.70 and 18,682.21 is: 28,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,657.82 : 38,486.70 = 18,682.21 : x
  2. Step 2: Convert to fraction form
    25,657.82/38,486.70 = 18,682.21/x
  3. Step 3: Cross multiply
    25,657.82x = 38,486.70 × 18,682.21
  4. Step 4: Simplify right side
    25,657.82x = 719,016,515.39
  5. Step 5: Solve for x
    x = 719,016,515.39/25,657.82
  6. Step 6: Final answer
    x = 28,023.29

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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.