Home / 14,045.45-21,054.34-5,731.30

Finding the Fourth Proportional to 14,045.45, 21,054.34 and 5,731.30

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Solution

The fourth proportional to 14,045.45, 21,054.34 and 5,731.30 is: 8,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.45 : 21,054.34 = 5,731.30 : x
  2. Step 2: Convert to fraction form
    14,045.45/21,054.34 = 5,731.30/x
  3. Step 3: Cross multiply
    14,045.45x = 21,054.34 × 5,731.30
  4. Step 4: Simplify right side
    14,045.45x = 120,668,671.88
  5. Step 5: Solve for x
    x = 120,668,671.88/14,045.45
  6. Step 6: Final answer
    x = 8,591.30

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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.