Home / 20,858.18-31,289.99-10,997.82

Finding the Fourth Proportional to 20,858.18, 31,289.99 and 10,997.82

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Solution

The fourth proportional to 20,858.18, 31,289.99 and 10,997.82 is: 16,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858.18 : 31,289.99 = 10,997.82 : x
  2. Step 2: Convert to fraction form
    20,858.18/31,289.99 = 10,997.82/x
  3. Step 3: Cross multiply
    20,858.18x = 31,289.99 × 10,997.82
  4. Step 4: Simplify right side
    20,858.18x = 344,121,622.83
  5. Step 5: Solve for x
    x = 344,121,622.83/20,858.18
  6. Step 6: Final answer
    x = 16,498.17

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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.