Home / 18,575.75-25,604.55-15,212.63

Finding the Fourth Proportional to 18,575.75, 25,604.55 and 15,212.63

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Solution

The fourth proportional to 18,575.75, 25,604.55 and 15,212.63 is: 20,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.75 : 25,604.55 = 15,212.63 : x
  2. Step 2: Convert to fraction form
    18,575.75/25,604.55 = 15,212.63/x
  3. Step 3: Cross multiply
    18,575.75x = 25,604.55 × 15,212.63
  4. Step 4: Simplify right side
    18,575.75x = 389,512,417.44
  5. Step 5: Solve for x
    x = 389,512,417.44/18,575.75
  6. Step 6: Final answer
    x = 20,968.87

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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.