Home / 18,946.34-28,416.96-13,706.42

Finding the Fourth Proportional to 18,946.34, 28,416.96 and 13,706.42

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Solution

The fourth proportional to 18,946.34, 28,416.96 and 13,706.42 is: 20,557.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.34 : 28,416.96 = 13,706.42 : x
  2. Step 2: Convert to fraction form
    18,946.34/28,416.96 = 13,706.42/x
  3. Step 3: Cross multiply
    18,946.34x = 28,416.96 × 13,706.42
  4. Step 4: Simplify right side
    18,946.34x = 389,494,788.88
  5. Step 5: Solve for x
    x = 389,494,788.88/18,946.34
  6. Step 6: Final answer
    x = 20,557.79

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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.