Home / 16,730.78-23,089.20-10,015.11

Finding the Fourth Proportional to 16,730.78, 23,089.20 and 10,015.11

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Solution

The fourth proportional to 16,730.78, 23,089.20 and 10,015.11 is: 13,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,730.78 : 23,089.20 = 10,015.11 : x
  2. Step 2: Convert to fraction form
    16,730.78/23,089.20 = 10,015.11/x
  3. Step 3: Cross multiply
    16,730.78x = 23,089.20 × 10,015.11
  4. Step 4: Simplify right side
    16,730.78x = 231,240,772.33
  5. Step 5: Solve for x
    x = 231,240,772.33/16,730.78
  6. Step 6: Final answer
    x = 13,821.28

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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.