Home / 20,810.29-31,149.79-14,868.03

Finding the Fourth Proportional to 20,810.29, 31,149.79 and 14,868.03

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Solution

The fourth proportional to 20,810.29, 31,149.79 and 14,868.03 is: 22,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.29 : 31,149.79 = 14,868.03 : x
  2. Step 2: Convert to fraction form
    20,810.29/31,149.79 = 14,868.03/x
  3. Step 3: Cross multiply
    20,810.29x = 31,149.79 × 14,868.03
  4. Step 4: Simplify right side
    20,810.29x = 463,136,046.06
  5. Step 5: Solve for x
    x = 463,136,046.06/20,810.29
  6. Step 6: Final answer
    x = 22,255.14

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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.