Home / 21,928.32-30,261.60-12,497.76

Finding the Fourth Proportional to 21,928.32, 30,261.60 and 12,497.76

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Solution

The fourth proportional to 21,928.32, 30,261.60 and 12,497.76 is: 17,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.32 : 30,261.60 = 12,497.76 : x
  2. Step 2: Convert to fraction form
    21,928.32/30,261.60 = 12,497.76/x
  3. Step 3: Cross multiply
    21,928.32x = 30,261.60 × 12,497.76
  4. Step 4: Simplify right side
    21,928.32x = 378,202,214.02
  5. Step 5: Solve for x
    x = 378,202,214.02/21,928.32
  6. Step 6: Final answer
    x = 17,247.20

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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.