Home / 14,308.70-21,461.61-3,921.98

Finding the Fourth Proportional to 14,308.70, 21,461.61 and 3,921.98

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Solution

The fourth proportional to 14,308.70, 21,461.61 and 3,921.98 is: 5,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.70 : 21,461.61 = 3,921.98 : x
  2. Step 2: Convert to fraction form
    14,308.70/21,461.61 = 3,921.98/x
  3. Step 3: Cross multiply
    14,308.70x = 21,461.61 × 3,921.98
  4. Step 4: Simplify right side
    14,308.70x = 84,172,005.19
  5. Step 5: Solve for x
    x = 84,172,005.19/14,308.70
  6. Step 6: Final answer
    x = 5,882.58

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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.