Home / 20,904.49-28,847.37-11,952.82

Finding the Fourth Proportional to 20,904.49, 28,847.37 and 11,952.82

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Solution

The fourth proportional to 20,904.49, 28,847.37 and 11,952.82 is: 16,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.49 : 28,847.37 = 11,952.82 : x
  2. Step 2: Convert to fraction form
    20,904.49/28,847.37 = 11,952.82/x
  3. Step 3: Cross multiply
    20,904.49x = 28,847.37 × 11,952.82
  4. Step 4: Simplify right side
    20,904.49x = 344,807,421.08
  5. Step 5: Solve for x
    x = 344,807,421.08/20,904.49
  6. Step 6: Final answer
    x = 16,494.42

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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.