Home / 21,956.64-30,299.88-12,525.36

Finding the Fourth Proportional to 21,956.64, 30,299.88 and 12,525.36

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Solution

The fourth proportional to 21,956.64, 30,299.88 and 12,525.36 is: 17,284.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.64 : 30,299.88 = 12,525.36 : x
  2. Step 2: Convert to fraction form
    21,956.64/30,299.88 = 12,525.36/x
  3. Step 3: Cross multiply
    21,956.64x = 30,299.88 × 12,525.36
  4. Step 4: Simplify right side
    21,956.64x = 379,516,904.96
  5. Step 5: Solve for x
    x = 379,516,904.96/21,956.64
  6. Step 6: Final answer
    x = 17,284.84

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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.