Home / 20,727.18-28,603.53-11,295.75

Finding the Fourth Proportional to 20,727.18, 28,603.53 and 11,295.75

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Solution

The fourth proportional to 20,727.18, 28,603.53 and 11,295.75 is: 15,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.18 : 28,603.53 = 11,295.75 : x
  2. Step 2: Convert to fraction form
    20,727.18/28,603.53 = 11,295.75/x
  3. Step 3: Cross multiply
    20,727.18x = 28,603.53 × 11,295.75
  4. Step 4: Simplify right side
    20,727.18x = 323,098,324.00
  5. Step 5: Solve for x
    x = 323,098,324.00/20,727.18
  6. Step 6: Final answer
    x = 15,588.15

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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.