Home / 20,503.20-28,233.36-19,014.70

Finding the Fourth Proportional to 20,503.20, 28,233.36 and 19,014.70

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Solution

The fourth proportional to 20,503.20, 28,233.36 and 19,014.70 is: 26,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.20 : 28,233.36 = 19,014.70 : x
  2. Step 2: Convert to fraction form
    20,503.20/28,233.36 = 19,014.70/x
  3. Step 3: Cross multiply
    20,503.20x = 28,233.36 × 19,014.70
  4. Step 4: Simplify right side
    20,503.20x = 536,848,870.39
  5. Step 5: Solve for x
    x = 536,848,870.39/20,503.20
  6. Step 6: Final answer
    x = 26,183.66

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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.