Home / 13,557.42-20,330.37-4,673.61

Finding the Fourth Proportional to 13,557.42, 20,330.37 and 4,673.61

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Solution

The fourth proportional to 13,557.42, 20,330.37 and 4,673.61 is: 7,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.42 : 20,330.37 = 4,673.61 : x
  2. Step 2: Convert to fraction form
    13,557.42/20,330.37 = 4,673.61/x
  3. Step 3: Cross multiply
    13,557.42x = 20,330.37 × 4,673.61
  4. Step 4: Simplify right side
    13,557.42x = 95,016,220.54
  5. Step 5: Solve for x
    x = 95,016,220.54/13,557.42
  6. Step 6: Final answer
    x = 7,008.43

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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.