Home / 16,980.48-25,488-12,055.68

Finding the Fourth Proportional to 16,980.48, 25,488 and 12,055.68

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Solution

The fourth proportional to 16,980.48, 25,488 and 12,055.68 is: 18,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.48 : 25,488 = 12,055.68 : x
  2. Step 2: Convert to fraction form
    16,980.48/25,488 = 12,055.68/x
  3. Step 3: Cross multiply
    16,980.48x = 25,488 × 12,055.68
  4. Step 4: Simplify right side
    16,980.48x = 307,275,171.84
  5. Step 5: Solve for x
    x = 307,275,171.84/16,980.48
  6. Step 6: Final answer
    x = 18,095.79

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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.