Home / 20,763.03-28,644.26-14,479.05

Finding the Fourth Proportional to 20,763.03, 28,644.26 and 14,479.05

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Solution

The fourth proportional to 20,763.03, 28,644.26 and 14,479.05 is: 19,975.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.03 : 28,644.26 = 14,479.05 : x
  2. Step 2: Convert to fraction form
    20,763.03/28,644.26 = 14,479.05/x
  3. Step 3: Cross multiply
    20,763.03x = 28,644.26 × 14,479.05
  4. Step 4: Simplify right side
    20,763.03x = 414,741,600.36
  5. Step 5: Solve for x
    x = 414,741,600.36/20,763.03
  6. Step 6: Final answer
    x = 19,975.00

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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.