Home / 25,149.78-34,706.52-13,819.40

Finding the Fourth Proportional to 25,149.78, 34,706.52 and 13,819.40

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Solution

The fourth proportional to 25,149.78, 34,706.52 and 13,819.40 is: 19,070.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,149.78 : 34,706.52 = 13,819.40 : x
  2. Step 2: Convert to fraction form
    25,149.78/34,706.52 = 13,819.40/x
  3. Step 3: Cross multiply
    25,149.78x = 34,706.52 × 13,819.40
  4. Step 4: Simplify right side
    25,149.78x = 479,623,108.96
  5. Step 5: Solve for x
    x = 479,623,108.96/25,149.78
  6. Step 6: Final answer
    x = 19,070.67

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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.