Home / 20,544.20-28,351.80-12,045.14

Finding the Fourth Proportional to 20,544.20, 28,351.80 and 12,045.14

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Solution

The fourth proportional to 20,544.20, 28,351.80 and 12,045.14 is: 16,622.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.20 : 28,351.80 = 12,045.14 : x
  2. Step 2: Convert to fraction form
    20,544.20/28,351.80 = 12,045.14/x
  3. Step 3: Cross multiply
    20,544.20x = 28,351.80 × 12,045.14
  4. Step 4: Simplify right side
    20,544.20x = 341,501,258.49
  5. Step 5: Solve for x
    x = 341,501,258.49/20,544.20
  6. Step 6: Final answer
    x = 16,622.76

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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.