Home / 20,454.26-28,226.82-11,503.76

Finding the Fourth Proportional to 20,454.26, 28,226.82 and 11,503.76

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Solution

The fourth proportional to 20,454.26, 28,226.82 and 11,503.76 is: 15,875.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.26 : 28,226.82 = 11,503.76 : x
  2. Step 2: Convert to fraction form
    20,454.26/28,226.82 = 11,503.76/x
  3. Step 3: Cross multiply
    20,454.26x = 28,226.82 × 11,503.76
  4. Step 4: Simplify right side
    20,454.26x = 324,714,562.84
  5. Step 5: Solve for x
    x = 324,714,562.84/20,454.26
  6. Step 6: Final answer
    x = 15,875.16

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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.