Home / 20,727.23-28,603.67-11,774.79

Finding the Fourth Proportional to 20,727.23, 28,603.67 and 11,774.79

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Solution

The fourth proportional to 20,727.23, 28,603.67 and 11,774.79 is: 16,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.23 : 28,603.67 = 11,774.79 : x
  2. Step 2: Convert to fraction form
    20,727.23/28,603.67 = 11,774.79/x
  3. Step 3: Cross multiply
    20,727.23x = 28,603.67 × 11,774.79
  4. Step 4: Simplify right side
    20,727.23x = 336,802,148.61
  5. Step 5: Solve for x
    x = 336,802,148.61/20,727.23
  6. Step 6: Final answer
    x = 16,249.26

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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.