Home / 30,324.40-45,467.04-12,789.52

Finding the Fourth Proportional to 30,324.40, 45,467.04 and 12,789.52

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Solution

The fourth proportional to 30,324.40, 45,467.04 and 12,789.52 is: 19,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,324.40 : 45,467.04 = 12,789.52 : x
  2. Step 2: Convert to fraction form
    30,324.40/45,467.04 = 12,789.52/x
  3. Step 3: Cross multiply
    30,324.40x = 45,467.04 × 12,789.52
  4. Step 4: Simplify right side
    30,324.40x = 581,501,617.42
  5. Step 5: Solve for x
    x = 581,501,617.42/30,324.40
  6. Step 6: Final answer
    x = 19,176.03

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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.