Home / 28,956.88-43,367.28-14,119.28

Finding the Fourth Proportional to 28,956.88, 43,367.28 and 14,119.28

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Solution

The fourth proportional to 28,956.88, 43,367.28 and 14,119.28 is: 21,145.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.88 : 43,367.28 = 14,119.28 : x
  2. Step 2: Convert to fraction form
    28,956.88/43,367.28 = 14,119.28/x
  3. Step 3: Cross multiply
    28,956.88x = 43,367.28 × 14,119.28
  4. Step 4: Simplify right side
    28,956.88x = 612,314,769.16
  5. Step 5: Solve for x
    x = 612,314,769.16/28,956.88
  6. Step 6: Final answer
    x = 21,145.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.