Home / 16,731.28-23,089.89-10,015.61

Finding the Fourth Proportional to 16,731.28, 23,089.89 and 10,015.61

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Solution

The fourth proportional to 16,731.28, 23,089.89 and 10,015.61 is: 13,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,731.28 : 23,089.89 = 10,015.61 : x
  2. Step 2: Convert to fraction form
    16,731.28/23,089.89 = 10,015.61/x
  3. Step 3: Cross multiply
    16,731.28x = 23,089.89 × 10,015.61
  4. Step 4: Simplify right side
    16,731.28x = 231,259,167.66
  5. Step 5: Solve for x
    x = 231,259,167.66/16,731.28
  6. Step 6: Final answer
    x = 13,821.97

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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.