Home / 28,584.96-39,405.84-19,618.40

Finding the Fourth Proportional to 28,584.96, 39,405.84 and 19,618.40

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Solution

The fourth proportional to 28,584.96, 39,405.84 and 19,618.40 is: 27,044.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,584.96 : 39,405.84 = 19,618.40 : x
  2. Step 2: Convert to fraction form
    28,584.96/39,405.84 = 19,618.40/x
  3. Step 3: Cross multiply
    28,584.96x = 39,405.84 × 19,618.40
  4. Step 4: Simplify right side
    28,584.96x = 773,079,531.46
  5. Step 5: Solve for x
    x = 773,079,531.46/28,584.96
  6. Step 6: Final answer
    x = 27,044.98

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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.