Home / 19,113.30-28,638.77-11,702.21

Finding the Fourth Proportional to 19,113.30, 28,638.77 and 11,702.21

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Solution

The fourth proportional to 19,113.30, 28,638.77 and 11,702.21 is: 17,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.30 : 28,638.77 = 11,702.21 : x
  2. Step 2: Convert to fraction form
    19,113.30/28,638.77 = 11,702.21/x
  3. Step 3: Cross multiply
    19,113.30x = 28,638.77 × 11,702.21
  4. Step 4: Simplify right side
    19,113.30x = 335,136,698.98
  5. Step 5: Solve for x
    x = 335,136,698.98/19,113.30
  6. Step 6: Final answer
    x = 17,534.21

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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.