Home / 20,392.56-28,101.33-14,717.70

Finding the Fourth Proportional to 20,392.56, 28,101.33 and 14,717.70

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Solution

The fourth proportional to 20,392.56, 28,101.33 and 14,717.70 is: 20,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392.56 : 28,101.33 = 14,717.70 : x
  2. Step 2: Convert to fraction form
    20,392.56/28,101.33 = 14,717.70/x
  3. Step 3: Cross multiply
    20,392.56x = 28,101.33 × 14,717.70
  4. Step 4: Simplify right side
    20,392.56x = 413,586,944.54
  5. Step 5: Solve for x
    x = 413,586,944.54/20,392.56
  6. Step 6: Final answer
    x = 20,281.27

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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.