Home / 17,866.27-26,720.70-15,905.80

Finding the Fourth Proportional to 17,866.27, 26,720.70 and 15,905.80

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Solution

The fourth proportional to 17,866.27, 26,720.70 and 15,905.80 is: 23,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,866.27 : 26,720.70 = 15,905.80 : x
  2. Step 2: Convert to fraction form
    17,866.27/26,720.70 = 15,905.80/x
  3. Step 3: Cross multiply
    17,866.27x = 26,720.70 × 15,905.80
  4. Step 4: Simplify right side
    17,866.27x = 425,014,110.06
  5. Step 5: Solve for x
    x = 425,014,110.06/17,866.27
  6. Step 6: Final answer
    x = 23,788.63

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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.