Home / 19,020.30-28,530.45-11,114.70

Finding the Fourth Proportional to 19,020.30, 28,530.45 and 11,114.70

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Solution

The fourth proportional to 19,020.30, 28,530.45 and 11,114.70 is: 16,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.30 : 28,530.45 = 11,114.70 : x
  2. Step 2: Convert to fraction form
    19,020.30/28,530.45 = 11,114.70/x
  3. Step 3: Cross multiply
    19,020.30x = 28,530.45 × 11,114.70
  4. Step 4: Simplify right side
    19,020.30x = 317,107,392.62
  5. Step 5: Solve for x
    x = 317,107,392.62/19,020.30
  6. Step 6: Final answer
    x = 16,672.05

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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.