Home / 20,652.40-28,501.14-11,701

Finding the Fourth Proportional to 20,652.40, 28,501.14 and 11,701

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Solution

The fourth proportional to 20,652.40, 28,501.14 and 11,701 is: 16,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.40 : 28,501.14 = 11,701 : x
  2. Step 2: Convert to fraction form
    20,652.40/28,501.14 = 11,701/x
  3. Step 3: Cross multiply
    20,652.40x = 28,501.14 × 11,701
  4. Step 4: Simplify right side
    20,652.40x = 333,491,839.14
  5. Step 5: Solve for x
    x = 333,491,839.14/20,652.40
  6. Step 6: Final answer
    x = 16,147.85

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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.