Home / 27,894.21-38,494.28-15,318.96

Finding the Fourth Proportional to 27,894.21, 38,494.28 and 15,318.96

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Solution

The fourth proportional to 27,894.21, 38,494.28 and 15,318.96 is: 21,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,894.21 : 38,494.28 = 15,318.96 : x
  2. Step 2: Convert to fraction form
    27,894.21/38,494.28 = 15,318.96/x
  3. Step 3: Cross multiply
    27,894.21x = 38,494.28 × 15,318.96
  4. Step 4: Simplify right side
    27,894.21x = 589,692,373.85
  5. Step 5: Solve for x
    x = 589,692,373.85/27,894.21
  6. Step 6: Final answer
    x = 21,140.31

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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.