Home / 25,108.78-34,650.48-13,930.78

Finding the Fourth Proportional to 25,108.78, 34,650.48 and 13,930.78

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Solution

The fourth proportional to 25,108.78, 34,650.48 and 13,930.78 is: 19,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,108.78 : 34,650.48 = 13,930.78 : x
  2. Step 2: Convert to fraction form
    25,108.78/34,650.48 = 13,930.78/x
  3. Step 3: Cross multiply
    25,108.78x = 34,650.48 × 13,930.78
  4. Step 4: Simplify right side
    25,108.78x = 482,708,213.77
  5. Step 5: Solve for x
    x = 482,708,213.77/25,108.78
  6. Step 6: Final answer
    x = 19,224.68

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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.