Home / 20,682.32-28,541.80-11,250.96

Finding the Fourth Proportional to 20,682.32, 28,541.80 and 11,250.96

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Solution

The fourth proportional to 20,682.32, 28,541.80 and 11,250.96 is: 15,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.32 : 28,541.80 = 11,250.96 : x
  2. Step 2: Convert to fraction form
    20,682.32/28,541.80 = 11,250.96/x
  3. Step 3: Cross multiply
    20,682.32x = 28,541.80 × 11,250.96
  4. Step 4: Simplify right side
    20,682.32x = 321,122,650.13
  5. Step 5: Solve for x
    x = 321,122,650.13/20,682.32
  6. Step 6: Final answer
    x = 15,526.43

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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.