Home / 35,987.92-53,979.36-12,616

Finding the Fourth Proportional to 35,987.92, 53,979.36 and 12,616

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Solution

The fourth proportional to 35,987.92, 53,979.36 and 12,616 is: 18,923.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.92 : 53,979.36 = 12,616 : x
  2. Step 2: Convert to fraction form
    35,987.92/53,979.36 = 12,616/x
  3. Step 3: Cross multiply
    35,987.92x = 53,979.36 × 12,616
  4. Step 4: Simplify right side
    35,987.92x = 681,003,605.76
  5. Step 5: Solve for x
    x = 681,003,605.76/35,987.92
  6. Step 6: Final answer
    x = 18,923.12

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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.