Home / 28,584.59-39,445.86-15,838.30

Finding the Fourth Proportional to 28,584.59, 39,445.86 and 15,838.30

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Solution

The fourth proportional to 28,584.59, 39,445.86 and 15,838.30 is: 21,856.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,584.59 : 39,445.86 = 15,838.30 : x
  2. Step 2: Convert to fraction form
    28,584.59/39,445.86 = 15,838.30/x
  3. Step 3: Cross multiply
    28,584.59x = 39,445.86 × 15,838.30
  4. Step 4: Simplify right side
    28,584.59x = 624,755,473.14
  5. Step 5: Solve for x
    x = 624,755,473.14/28,584.59
  6. Step 6: Final answer
    x = 21,856.38

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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.