Home / 31,221.81-46,828.11-11,495.79

Finding the Fourth Proportional to 31,221.81, 46,828.11 and 11,495.79

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Solution

The fourth proportional to 31,221.81, 46,828.11 and 11,495.79 is: 17,241.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.81 : 46,828.11 = 11,495.79 : x
  2. Step 2: Convert to fraction form
    31,221.81/46,828.11 = 11,495.79/x
  3. Step 3: Cross multiply
    31,221.81x = 46,828.11 × 11,495.79
  4. Step 4: Simplify right side
    31,221.81x = 538,326,118.66
  5. Step 5: Solve for x
    x = 538,326,118.66/31,221.81
  6. Step 6: Final answer
    x = 17,241.99

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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.