Home / 20,450.28-28,214.82-12,065.16

Finding the Fourth Proportional to 20,450.28, 28,214.82 and 12,065.16

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Solution

The fourth proportional to 20,450.28, 28,214.82 and 12,065.16 is: 16,646.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.28 : 28,214.82 = 12,065.16 : x
  2. Step 2: Convert to fraction form
    20,450.28/28,214.82 = 12,065.16/x
  3. Step 3: Cross multiply
    20,450.28x = 28,214.82 × 12,065.16
  4. Step 4: Simplify right side
    20,450.28x = 340,416,317.67
  5. Step 5: Solve for x
    x = 340,416,317.67/20,450.28
  6. Step 6: Final answer
    x = 16,646.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.