Home / 19,244.70-28,871.10-8,145.68

Finding the Fourth Proportional to 19,244.70, 28,871.10 and 8,145.68

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Solution

The fourth proportional to 19,244.70, 28,871.10 and 8,145.68 is: 12,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,244.70 : 28,871.10 = 8,145.68 : x
  2. Step 2: Convert to fraction form
    19,244.70/28,871.10 = 8,145.68/x
  3. Step 3: Cross multiply
    19,244.70x = 28,871.10 × 8,145.68
  4. Step 4: Simplify right side
    19,244.70x = 235,174,597.49
  5. Step 5: Solve for x
    x = 235,174,597.49/19,244.70
  6. Step 6: Final answer
    x = 12,220.23

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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.