Home / 27,381.11-37,782.75-15,444.64

Finding the Fourth Proportional to 27,381.11, 37,782.75 and 15,444.64

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Solution

The fourth proportional to 27,381.11, 37,782.75 and 15,444.64 is: 21,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,381.11 : 37,782.75 = 15,444.64 : x
  2. Step 2: Convert to fraction form
    27,381.11/37,782.75 = 15,444.64/x
  3. Step 3: Cross multiply
    27,381.11x = 37,782.75 × 15,444.64
  4. Step 4: Simplify right side
    27,381.11x = 583,540,971.96
  5. Step 5: Solve for x
    x = 583,540,971.96/27,381.11
  6. Step 6: Final answer
    x = 21,311.81

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Why These Related Problems?

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