Home / 31,833.69-43,911.63-21,757.02

Finding the Fourth Proportional to 31,833.69, 43,911.63 and 21,757.02

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Solution

The fourth proportional to 31,833.69, 43,911.63 and 21,757.02 is: 30,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,833.69 : 43,911.63 = 21,757.02 : x
  2. Step 2: Convert to fraction form
    31,833.69/43,911.63 = 21,757.02/x
  3. Step 3: Cross multiply
    31,833.69x = 43,911.63 × 21,757.02
  4. Step 4: Simplify right side
    31,833.69x = 955,386,212.14
  5. Step 5: Solve for x
    x = 955,386,212.14/31,833.69
  6. Step 6: Final answer
    x = 30,011.80

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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.