Home / 21,214.21-31,834.73-11,860.38

Finding the Fourth Proportional to 21,214.21, 31,834.73 and 11,860.38

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Solution

The fourth proportional to 21,214.21, 31,834.73 and 11,860.38 is: 17,798.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.21 : 31,834.73 = 11,860.38 : x
  2. Step 2: Convert to fraction form
    21,214.21/31,834.73 = 11,860.38/x
  3. Step 3: Cross multiply
    21,214.21x = 31,834.73 × 11,860.38
  4. Step 4: Simplify right side
    21,214.21x = 377,571,995.00
  5. Step 5: Solve for x
    x = 377,571,995.00/21,214.21
  6. Step 6: Final answer
    x = 17,798.07

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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.