Home / 17,837.40-26,669.70-13,171.80

Finding the Fourth Proportional to 17,837.40, 26,669.70 and 13,171.80

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Solution

The fourth proportional to 17,837.40, 26,669.70 and 13,171.80 is: 19,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,837.40 : 26,669.70 = 13,171.80 : x
  2. Step 2: Convert to fraction form
    17,837.40/26,669.70 = 13,171.80/x
  3. Step 3: Cross multiply
    17,837.40x = 26,669.70 × 13,171.80
  4. Step 4: Simplify right side
    17,837.40x = 351,287,954.46
  5. Step 5: Solve for x
    x = 351,287,954.46/17,837.40
  6. Step 6: Final answer
    x = 19,693.90

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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.