Home / 20,674.40-31,006.20-14,099.36

Finding the Fourth Proportional to 20,674.40, 31,006.20 and 14,099.36

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Solution

The fourth proportional to 20,674.40, 31,006.20 and 14,099.36 is: 21,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.40 : 31,006.20 = 14,099.36 : x
  2. Step 2: Convert to fraction form
    20,674.40/31,006.20 = 14,099.36/x
  3. Step 3: Cross multiply
    20,674.40x = 31,006.20 × 14,099.36
  4. Step 4: Simplify right side
    20,674.40x = 437,167,576.03
  5. Step 5: Solve for x
    x = 437,167,576.03/20,674.40
  6. Step 6: Final answer
    x = 21,145.36

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1.5x scale

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.