Home / 27,215.89-40,831.40-15,537.31

Finding the Fourth Proportional to 27,215.89, 40,831.40 and 15,537.31

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Solution

The fourth proportional to 27,215.89, 40,831.40 and 15,537.31 is: 23,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.89 : 40,831.40 = 15,537.31 : x
  2. Step 2: Convert to fraction form
    27,215.89/40,831.40 = 15,537.31/x
  3. Step 3: Cross multiply
    27,215.89x = 40,831.40 × 15,537.31
  4. Step 4: Simplify right side
    27,215.89x = 634,410,041.85
  5. Step 5: Solve for x
    x = 634,410,041.85/27,215.89
  6. Step 6: Final answer
    x = 23,310.28

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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.