Home / 19,116.30-28,643.26-11,705.21

Finding the Fourth Proportional to 19,116.30, 28,643.26 and 11,705.21

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Solution

The fourth proportional to 19,116.30, 28,643.26 and 11,705.21 is: 17,538.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.30 : 28,643.26 = 11,705.21 : x
  2. Step 2: Convert to fraction form
    19,116.30/28,643.26 = 11,705.21/x
  3. Step 3: Cross multiply
    19,116.30x = 28,643.26 × 11,705.21
  4. Step 4: Simplify right side
    19,116.30x = 335,275,373.38
  5. Step 5: Solve for x
    x = 335,275,373.38/19,116.30
  6. Step 6: Final answer
    x = 17,538.72

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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.