Home / 31,538.88-47,282.66-11,806.38

Finding the Fourth Proportional to 31,538.88, 47,282.66 and 11,806.38

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Solution

The fourth proportional to 31,538.88, 47,282.66 and 11,806.38 is: 17,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,538.88 : 47,282.66 = 11,806.38 : x
  2. Step 2: Convert to fraction form
    31,538.88/47,282.66 = 11,806.38/x
  3. Step 3: Cross multiply
    31,538.88x = 47,282.66 × 11,806.38
  4. Step 4: Simplify right side
    31,538.88x = 558,237,051.37
  5. Step 5: Solve for x
    x = 558,237,051.37/31,538.88
  6. Step 6: Final answer
    x = 17,699.96

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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.