Home / 20,633.10-28,473.30-11,201.46

Finding the Fourth Proportional to 20,633.10, 28,473.30 and 11,201.46

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Solution

The fourth proportional to 20,633.10, 28,473.30 and 11,201.46 is: 15,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.10 : 28,473.30 = 11,201.46 : x
  2. Step 2: Convert to fraction form
    20,633.10/28,473.30 = 11,201.46/x
  3. Step 3: Cross multiply
    20,633.10x = 28,473.30 × 11,201.46
  4. Step 4: Simplify right side
    20,633.10x = 318,942,531.02
  5. Step 5: Solve for x
    x = 318,942,531.02/20,633.10
  6. Step 6: Final answer
    x = 15,457.81

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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.