Home / 21,217.33-31,815.06-14,563.99

Finding the Fourth Proportional to 21,217.33, 31,815.06 and 14,563.99

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Solution

The fourth proportional to 21,217.33, 31,815.06 and 14,563.99 is: 21,838.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.33 : 31,815.06 = 14,563.99 : x
  2. Step 2: Convert to fraction form
    21,217.33/31,815.06 = 14,563.99/x
  3. Step 3: Cross multiply
    21,217.33x = 31,815.06 × 14,563.99
  4. Step 4: Simplify right side
    21,217.33x = 463,354,215.69
  5. Step 5: Solve for x
    x = 463,354,215.69/21,217.33
  6. Step 6: Final answer
    x = 21,838.48

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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.