Home / 21,928.32-30,262.82-12,496.68

Finding the Fourth Proportional to 21,928.32, 30,262.82 and 12,496.68

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Solution

The fourth proportional to 21,928.32, 30,262.82 and 12,496.68 is: 17,246.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.32 : 30,262.82 = 12,496.68 : x
  2. Step 2: Convert to fraction form
    21,928.32/30,262.82 = 12,496.68/x
  3. Step 3: Cross multiply
    21,928.32x = 30,262.82 × 12,496.68
  4. Step 4: Simplify right side
    21,928.32x = 378,184,714.95
  5. Step 5: Solve for x
    x = 378,184,714.95/21,928.32
  6. Step 6: Final answer
    x = 17,246.41

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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.