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Finding the Fourth Proportional to 39,668, 59,508.16 and 13,370.72

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Solution

The fourth proportional to 39,668, 59,508.16 and 13,370.72 is: 20,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,668 : 59,508.16 = 13,370.72 : x
  2. Step 2: Convert to fraction form
    39,668/59,508.16 = 13,370.72/x
  3. Step 3: Cross multiply
    39,668x = 59,508.16 × 13,370.72
  4. Step 4: Simplify right side
    39,668x = 795,666,945.08
  5. Step 5: Solve for x
    x = 795,666,945.08/39,668
  6. Step 6: Final answer
    x = 20,058.16

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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.