Home / 25,781.09-38,644.29-16,391.57

Finding the Fourth Proportional to 25,781.09, 38,644.29 and 16,391.57

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Solution

The fourth proportional to 25,781.09, 38,644.29 and 16,391.57 is: 24,569.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781.09 : 38,644.29 = 16,391.57 : x
  2. Step 2: Convert to fraction form
    25,781.09/38,644.29 = 16,391.57/x
  3. Step 3: Cross multiply
    25,781.09x = 38,644.29 × 16,391.57
  4. Step 4: Simplify right side
    25,781.09x = 633,440,391.41
  5. Step 5: Solve for x
    x = 633,440,391.41/25,781.09
  6. Step 6: Final answer
    x = 24,569.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.