Home / 20,360.77-28,095.25-11,406.06

Finding the Fourth Proportional to 20,360.77, 28,095.25 and 11,406.06

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Solution

The fourth proportional to 20,360.77, 28,095.25 and 11,406.06 is: 15,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.77 : 28,095.25 = 11,406.06 : x
  2. Step 2: Convert to fraction form
    20,360.77/28,095.25 = 11,406.06/x
  3. Step 3: Cross multiply
    20,360.77x = 28,095.25 × 11,406.06
  4. Step 4: Simplify right side
    20,360.77x = 320,456,120.42
  5. Step 5: Solve for x
    x = 320,456,120.42/20,360.77
  6. Step 6: Final answer
    x = 15,738.90

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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.