Home / 22,228.16-30,674-12,156.56

Finding the Fourth Proportional to 22,228.16, 30,674 and 12,156.56

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Solution

The fourth proportional to 22,228.16, 30,674 and 12,156.56 is: 16,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.16 : 30,674 = 12,156.56 : x
  2. Step 2: Convert to fraction form
    22,228.16/30,674 = 12,156.56/x
  3. Step 3: Cross multiply
    22,228.16x = 30,674 × 12,156.56
  4. Step 4: Simplify right side
    22,228.16x = 372,890,321.44
  5. Step 5: Solve for x
    x = 372,890,321.44/22,228.16
  6. Step 6: Final answer
    x = 16,775.58

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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.