Home / 21,928.68-30,261.63-12,497.28

Finding the Fourth Proportional to 21,928.68, 30,261.63 and 12,497.28

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Solution

The fourth proportional to 21,928.68, 30,261.63 and 12,497.28 is: 17,246.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.68 : 30,261.63 = 12,497.28 : x
  2. Step 2: Convert to fraction form
    21,928.68/30,261.63 = 12,497.28/x
  3. Step 3: Cross multiply
    21,928.68x = 30,261.63 × 12,497.28
  4. Step 4: Simplify right side
    21,928.68x = 378,188,063.37
  5. Step 5: Solve for x
    x = 378,188,063.37/21,928.68
  6. Step 6: Final answer
    x = 17,246.28

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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.