Home / 21,727.69-29,981.74-12,166.25

Finding the Fourth Proportional to 21,727.69, 29,981.74 and 12,166.25

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Solution

The fourth proportional to 21,727.69, 29,981.74 and 12,166.25 is: 16,788.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.69 : 29,981.74 = 12,166.25 : x
  2. Step 2: Convert to fraction form
    21,727.69/29,981.74 = 12,166.25/x
  3. Step 3: Cross multiply
    21,727.69x = 29,981.74 × 12,166.25
  4. Step 4: Simplify right side
    21,727.69x = 364,765,346.86
  5. Step 5: Solve for x
    x = 364,765,346.86/21,727.69
  6. Step 6: Final answer
    x = 16,788.04

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1.5x scale

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.