Home / 20,633.13-28,473.66-11,201.67

Finding the Fourth Proportional to 20,633.13, 28,473.66 and 11,201.67

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Solution

The fourth proportional to 20,633.13, 28,473.66 and 11,201.67 is: 15,458.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.13 : 28,473.66 = 11,201.67 : x
  2. Step 2: Convert to fraction form
    20,633.13/28,473.66 = 11,201.67/x
  3. Step 3: Cross multiply
    20,633.13x = 28,473.66 × 11,201.67
  4. Step 4: Simplify right side
    20,633.13x = 318,952,543.01
  5. Step 5: Solve for x
    x = 318,952,543.01/20,633.13
  6. Step 6: Final answer
    x = 15,458.27

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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.