Home / 18,958.19-28,452.77-13,416.87

Finding the Fourth Proportional to 18,958.19, 28,452.77 and 13,416.87

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Solution

The fourth proportional to 18,958.19, 28,452.77 and 13,416.87 is: 20,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.19 : 28,452.77 = 13,416.87 : x
  2. Step 2: Convert to fraction form
    18,958.19/28,452.77 = 13,416.87/x
  3. Step 3: Cross multiply
    18,958.19x = 28,452.77 × 13,416.87
  4. Step 4: Simplify right side
    18,958.19x = 381,747,116.23
  5. Step 5: Solve for x
    x = 381,747,116.23/18,958.19
  6. Step 6: Final answer
    x = 20,136.26

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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.