Home / 19,830.56-27,313.62-14,778.62

Finding the Fourth Proportional to 19,830.56, 27,313.62 and 14,778.62

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Solution

The fourth proportional to 19,830.56, 27,313.62 and 14,778.62 is: 20,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.56 : 27,313.62 = 14,778.62 : x
  2. Step 2: Convert to fraction form
    19,830.56/27,313.62 = 14,778.62/x
  3. Step 3: Cross multiply
    19,830.56x = 27,313.62 × 14,778.62
  4. Step 4: Simplify right side
    19,830.56x = 403,657,610.80
  5. Step 5: Solve for x
    x = 403,657,610.80/19,830.56
  6. Step 6: Final answer
    x = 20,355.33

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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.