Home / 21,133.25-29,164.79-11,701.81

Finding the Fourth Proportional to 21,133.25, 29,164.79 and 11,701.81

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Solution

The fourth proportional to 21,133.25, 29,164.79 and 11,701.81 is: 16,149.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.25 : 29,164.79 = 11,701.81 : x
  2. Step 2: Convert to fraction form
    21,133.25/29,164.79 = 11,701.81/x
  3. Step 3: Cross multiply
    21,133.25x = 29,164.79 × 11,701.81
  4. Step 4: Simplify right side
    21,133.25x = 341,280,699.85
  5. Step 5: Solve for x
    x = 341,280,699.85/21,133.25
  6. Step 6: Final answer
    x = 16,149.00

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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.