Home / 28,404.36-42,601.68-7,623

Finding the Fourth Proportional to 28,404.36, 42,601.68 and 7,623

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Solution

The fourth proportional to 28,404.36, 42,601.68 and 7,623 is: 11,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404.36 : 42,601.68 = 7,623 : x
  2. Step 2: Convert to fraction form
    28,404.36/42,601.68 = 7,623/x
  3. Step 3: Cross multiply
    28,404.36x = 42,601.68 × 7,623
  4. Step 4: Simplify right side
    28,404.36x = 324,752,606.64
  5. Step 5: Solve for x
    x = 324,752,606.64/28,404.36
  6. Step 6: Final answer
    x = 11,433.20

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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.