Home / 20,563.68-28,374.81-11,610.99

Finding the Fourth Proportional to 20,563.68, 28,374.81 and 11,610.99

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Solution

The fourth proportional to 20,563.68, 28,374.81 and 11,610.99 is: 16,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.68 : 28,374.81 = 11,610.99 : x
  2. Step 2: Convert to fraction form
    20,563.68/28,374.81 = 11,610.99/x
  3. Step 3: Cross multiply
    20,563.68x = 28,374.81 × 11,610.99
  4. Step 4: Simplify right side
    20,563.68x = 329,459,635.16
  5. Step 5: Solve for x
    x = 329,459,635.16/20,563.68
  6. Step 6: Final answer
    x = 16,021.43

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1.5x scale

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.