Home / 20,450.01-28,221.29-11,496.99

Finding the Fourth Proportional to 20,450.01, 28,221.29 and 11,496.99

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Solution

The fourth proportional to 20,450.01, 28,221.29 and 11,496.99 is: 15,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.01 : 28,221.29 = 11,496.99 : x
  2. Step 2: Convert to fraction form
    20,450.01/28,221.29 = 11,496.99/x
  3. Step 3: Cross multiply
    20,450.01x = 28,221.29 × 11,496.99
  4. Step 4: Simplify right side
    20,450.01x = 324,459,888.92
  5. Step 5: Solve for x
    x = 324,459,888.92/20,450.01
  6. Step 6: Final answer
    x = 15,866.00

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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.