Home / 20,580.08-28,455.72-19,634

Finding the Fourth Proportional to 20,580.08, 28,455.72 and 19,634

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Solution

The fourth proportional to 20,580.08, 28,455.72 and 19,634 is: 27,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.08 : 28,455.72 = 19,634 : x
  2. Step 2: Convert to fraction form
    20,580.08/28,455.72 = 19,634/x
  3. Step 3: Cross multiply
    20,580.08x = 28,455.72 × 19,634
  4. Step 4: Simplify right side
    20,580.08x = 558,699,606.48
  5. Step 5: Solve for x
    x = 558,699,606.48/20,580.08
  6. Step 6: Final answer
    x = 27,147.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.