Home / 26,559.15-39,863.33-13,420.75

Finding the Fourth Proportional to 26,559.15, 39,863.33 and 13,420.75

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Solution

The fourth proportional to 26,559.15, 39,863.33 and 13,420.75 is: 20,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,559.15 : 39,863.33 = 13,420.75 : x
  2. Step 2: Convert to fraction form
    26,559.15/39,863.33 = 13,420.75/x
  3. Step 3: Cross multiply
    26,559.15x = 39,863.33 × 13,420.75
  4. Step 4: Simplify right side
    26,559.15x = 534,995,619.34
  5. Step 5: Solve for x
    x = 534,995,619.34/26,559.15
  6. Step 6: Final answer
    x = 20,143.55

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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.