Home / 26,518.81-39,776.13-15,418.42

Finding the Fourth Proportional to 26,518.81, 39,776.13 and 15,418.42

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Solution

The fourth proportional to 26,518.81, 39,776.13 and 15,418.42 is: 23,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,518.81 : 39,776.13 = 15,418.42 : x
  2. Step 2: Convert to fraction form
    26,518.81/39,776.13 = 15,418.42/x
  3. Step 3: Cross multiply
    26,518.81x = 39,776.13 × 15,418.42
  4. Step 4: Simplify right side
    26,518.81x = 613,284,879.43
  5. Step 5: Solve for x
    x = 613,284,879.43/26,518.81
  6. Step 6: Final answer
    x = 23,126.41

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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.