Home / 19,221.30-28,845-6,741.23

Finding the Fourth Proportional to 19,221.30, 28,845 and 6,741.23

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Solution

The fourth proportional to 19,221.30, 28,845 and 6,741.23 is: 10,116.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.30 : 28,845 = 6,741.23 : x
  2. Step 2: Convert to fraction form
    19,221.30/28,845 = 6,741.23/x
  3. Step 3: Cross multiply
    19,221.30x = 28,845 × 6,741.23
  4. Step 4: Simplify right side
    19,221.30x = 194,450,635.13
  5. Step 5: Solve for x
    x = 194,450,635.13/19,221.30
  6. Step 6: Final answer
    x = 10,116.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.