Home / 19,888.75-27,446.43-11,393.62

Finding the Fourth Proportional to 19,888.75, 27,446.43 and 11,393.62

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Solution

The fourth proportional to 19,888.75, 27,446.43 and 11,393.62 is: 15,723.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.75 : 27,446.43 = 11,393.62 : x
  2. Step 2: Convert to fraction form
    19,888.75/27,446.43 = 11,393.62/x
  3. Step 3: Cross multiply
    19,888.75x = 27,446.43 × 11,393.62
  4. Step 4: Simplify right side
    19,888.75x = 312,714,344.85
  5. Step 5: Solve for x
    x = 312,714,344.85/19,888.75
  6. Step 6: Final answer
    x = 15,723.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.