Home / 20,428.04-28,197.84-12,044

Finding the Fourth Proportional to 20,428.04, 28,197.84 and 12,044

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Solution

The fourth proportional to 20,428.04, 28,197.84 and 12,044 is: 16,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.04 : 28,197.84 = 12,044 : x
  2. Step 2: Convert to fraction form
    20,428.04/28,197.84 = 12,044/x
  3. Step 3: Cross multiply
    20,428.04x = 28,197.84 × 12,044
  4. Step 4: Simplify right side
    20,428.04x = 339,614,784.96
  5. Step 5: Solve for x
    x = 339,614,784.96/20,428.04
  6. Step 6: Final answer
    x = 16,624.93

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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.