Home / 26,860.36-40,291.32-12,821.86

Finding the Fourth Proportional to 26,860.36, 40,291.32 and 12,821.86

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Solution

The fourth proportional to 26,860.36, 40,291.32 and 12,821.86 is: 19,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,860.36 : 40,291.32 = 12,821.86 : x
  2. Step 2: Convert to fraction form
    26,860.36/40,291.32 = 12,821.86/x
  3. Step 3: Cross multiply
    26,860.36x = 40,291.32 × 12,821.86
  4. Step 4: Simplify right side
    26,860.36x = 516,609,398.69
  5. Step 5: Solve for x
    x = 516,609,398.69/26,860.36
  6. Step 6: Final answer
    x = 19,233.16

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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.