Home / 28,865.43-39,812.72-19,432.17

Finding the Fourth Proportional to 28,865.43, 39,812.72 and 19,432.17

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Solution

The fourth proportional to 28,865.43, 39,812.72 and 19,432.17 is: 26,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.43 : 39,812.72 = 19,432.17 : x
  2. Step 2: Convert to fraction form
    28,865.43/39,812.72 = 19,432.17/x
  3. Step 3: Cross multiply
    28,865.43x = 39,812.72 × 19,432.17
  4. Step 4: Simplify right side
    28,865.43x = 773,647,446.04
  5. Step 5: Solve for x
    x = 773,647,446.04/28,865.43
  6. Step 6: Final answer
    x = 26,801.87

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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.