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Finding the Fourth Proportional to 14,019.09, 20,986.62 and 13,520.62

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Solution

The fourth proportional to 14,019.09, 20,986.62 and 13,520.62 is: 20,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.09 : 20,986.62 = 13,520.62 : x
  2. Step 2: Convert to fraction form
    14,019.09/20,986.62 = 13,520.62/x
  3. Step 3: Cross multiply
    14,019.09x = 20,986.62 × 13,520.62
  4. Step 4: Simplify right side
    14,019.09x = 283,752,114.10
  5. Step 5: Solve for x
    x = 283,752,114.10/14,019.09
  6. Step 6: Final answer
    x = 20,240.41

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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.