Home / 25,675.57-38,511.13-18,211.22

Finding the Fourth Proportional to 25,675.57, 38,511.13 and 18,211.22

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Solution

The fourth proportional to 25,675.57, 38,511.13 and 18,211.22 is: 27,315.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,675.57 : 38,511.13 = 18,211.22 : x
  2. Step 2: Convert to fraction form
    25,675.57/38,511.13 = 18,211.22/x
  3. Step 3: Cross multiply
    25,675.57x = 38,511.13 × 18,211.22
  4. Step 4: Simplify right side
    25,675.57x = 701,334,660.88
  5. Step 5: Solve for x
    x = 701,334,660.88/25,675.57
  6. Step 6: Final answer
    x = 27,315.25

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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.