Home / 20,040.12-30,045-12,141

Finding the Fourth Proportional to 20,040.12, 30,045 and 12,141

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Solution

The fourth proportional to 20,040.12, 30,045 and 12,141 is: 18,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.12 : 30,045 = 12,141 : x
  2. Step 2: Convert to fraction form
    20,040.12/30,045 = 12,141/x
  3. Step 3: Cross multiply
    20,040.12x = 30,045 × 12,141
  4. Step 4: Simplify right side
    20,040.12x = 364,776,345
  5. Step 5: Solve for x
    x = 364,776,345/20,040.12
  6. Step 6: Final answer
    x = 18,202.30

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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.