Home / 19,114.30-28,640.26-11,703.21

Finding the Fourth Proportional to 19,114.30, 28,640.26 and 11,703.21

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Solution

The fourth proportional to 19,114.30, 28,640.26 and 11,703.21 is: 17,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.30 : 28,640.26 = 11,703.21 : x
  2. Step 2: Convert to fraction form
    19,114.30/28,640.26 = 11,703.21/x
  3. Step 3: Cross multiply
    19,114.30x = 28,640.26 × 11,703.21
  4. Step 4: Simplify right side
    19,114.30x = 335,182,977.23
  5. Step 5: Solve for x
    x = 335,182,977.23/19,114.30
  6. Step 6: Final answer
    x = 17,535.72

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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.