Home / 25,283.21-34,890.26-13,953.78

Finding the Fourth Proportional to 25,283.21, 34,890.26 and 13,953.78

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Solution

The fourth proportional to 25,283.21, 34,890.26 and 13,953.78 is: 19,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,283.21 : 34,890.26 = 13,953.78 : x
  2. Step 2: Convert to fraction form
    25,283.21/34,890.26 = 13,953.78/x
  3. Step 3: Cross multiply
    25,283.21x = 34,890.26 × 13,953.78
  4. Step 4: Simplify right side
    25,283.21x = 486,850,942.41
  5. Step 5: Solve for x
    x = 486,850,942.41/25,283.21
  6. Step 6: Final answer
    x = 19,255.90

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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.