Home / 18,228.40-27,345.50-6,385.48

Finding the Fourth Proportional to 18,228.40, 27,345.50 and 6,385.48

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Solution

The fourth proportional to 18,228.40, 27,345.50 and 6,385.48 is: 9,579.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.40 : 27,345.50 = 6,385.48 : x
  2. Step 2: Convert to fraction form
    18,228.40/27,345.50 = 6,385.48/x
  3. Step 3: Cross multiply
    18,228.40x = 27,345.50 × 6,385.48
  4. Step 4: Simplify right side
    18,228.40x = 174,614,143.34
  5. Step 5: Solve for x
    x = 174,614,143.34/18,228.40
  6. Step 6: Final answer
    x = 9,579.24

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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.