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Finding the Fourth Proportional to 47,513.03, 65,563.54 and 28,389

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Solution

The fourth proportional to 47,513.03, 65,563.54 and 28,389 is: 39,174.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,513.03 : 65,563.54 = 28,389 : x
  2. Step 2: Convert to fraction form
    47,513.03/65,563.54 = 28,389/x
  3. Step 3: Cross multiply
    47,513.03x = 65,563.54 × 28,389
  4. Step 4: Simplify right side
    47,513.03x = 1,861,283,195.12
  5. Step 5: Solve for x
    x = 1,861,283,195.12/47,513.03
  6. Step 6: Final answer
    x = 39,174.16

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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.