Home / 28,817.76-39,801.30-19,369.92

Finding the Fourth Proportional to 28,817.76, 39,801.30 and 19,369.92

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Solution

The fourth proportional to 28,817.76, 39,801.30 and 19,369.92 is: 26,752.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.76 : 39,801.30 = 19,369.92 : x
  2. Step 2: Convert to fraction form
    28,817.76/39,801.30 = 19,369.92/x
  3. Step 3: Cross multiply
    28,817.76x = 39,801.30 × 19,369.92
  4. Step 4: Simplify right side
    28,817.76x = 770,947,996.90
  5. Step 5: Solve for x
    x = 770,947,996.90/28,817.76
  6. Step 6: Final answer
    x = 26,752.53

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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.