Home / 19,815.60-29,680.20-17,626.80

Finding the Fourth Proportional to 19,815.60, 29,680.20 and 17,626.80

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Solution

The fourth proportional to 19,815.60, 29,680.20 and 17,626.80 is: 26,401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.60 : 29,680.20 = 17,626.80 : x
  2. Step 2: Convert to fraction form
    19,815.60/29,680.20 = 17,626.80/x
  3. Step 3: Cross multiply
    19,815.60x = 29,680.20 × 17,626.80
  4. Step 4: Simplify right side
    19,815.60x = 523,166,949.36
  5. Step 5: Solve for x
    x = 523,166,949.36/19,815.60
  6. Step 6: Final answer
    x = 26,401.77

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1.5x scale

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.