Home / 25,002.78-34,503.75-13,824.78

Finding the Fourth Proportional to 25,002.78, 34,503.75 and 13,824.78

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Solution

The fourth proportional to 25,002.78, 34,503.75 and 13,824.78 is: 19,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,002.78 : 34,503.75 = 13,824.78 : x
  2. Step 2: Convert to fraction form
    25,002.78/34,503.75 = 13,824.78/x
  3. Step 3: Cross multiply
    25,002.78x = 34,503.75 × 13,824.78
  4. Step 4: Simplify right side
    25,002.78x = 477,006,752.93
  5. Step 5: Solve for x
    x = 477,006,752.93/25,002.78
  6. Step 6: Final answer
    x = 19,078.15

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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.