Home / 20,369.77-28,110.03-11,417.26

Finding the Fourth Proportional to 20,369.77, 28,110.03 and 11,417.26

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Solution

The fourth proportional to 20,369.77, 28,110.03 and 11,417.26 is: 15,755.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.77 : 28,110.03 = 11,417.26 : x
  2. Step 2: Convert to fraction form
    20,369.77/28,110.03 = 11,417.26/x
  3. Step 3: Cross multiply
    20,369.77x = 28,110.03 × 11,417.26
  4. Step 4: Simplify right side
    20,369.77x = 320,939,521.12
  5. Step 5: Solve for x
    x = 320,939,521.12/20,369.77
  6. Step 6: Final answer
    x = 15,755.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.