Home / 17,319.78-25,981.48-5,630.26

Finding the Fourth Proportional to 17,319.78, 25,981.48 and 5,630.26

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Solution

The fourth proportional to 17,319.78, 25,981.48 and 5,630.26 is: 8,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,319.78 : 25,981.48 = 5,630.26 : x
  2. Step 2: Convert to fraction form
    17,319.78/25,981.48 = 5,630.26/x
  3. Step 3: Cross multiply
    17,319.78x = 25,981.48 × 5,630.26
  4. Step 4: Simplify right side
    17,319.78x = 146,282,487.58
  5. Step 5: Solve for x
    x = 146,282,487.58/17,319.78
  6. Step 6: Final answer
    x = 8,445.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.