Home / 20,813.01-28,722.48-11,382.27

Finding the Fourth Proportional to 20,813.01, 28,722.48 and 11,382.27

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Solution

The fourth proportional to 20,813.01, 28,722.48 and 11,382.27 is: 15,707.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813.01 : 28,722.48 = 11,382.27 : x
  2. Step 2: Convert to fraction form
    20,813.01/28,722.48 = 11,382.27/x
  3. Step 3: Cross multiply
    20,813.01x = 28,722.48 × 11,382.27
  4. Step 4: Simplify right side
    20,813.01x = 326,927,022.43
  5. Step 5: Solve for x
    x = 326,927,022.43/20,813.01
  6. Step 6: Final answer
    x = 15,707.82

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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.