Home / 16,187.76-22,341.96-15,449.04

Finding the Fourth Proportional to 16,187.76, 22,341.96 and 15,449.04

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Solution

The fourth proportional to 16,187.76, 22,341.96 and 15,449.04 is: 21,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,187.76 : 22,341.96 = 15,449.04 : x
  2. Step 2: Convert to fraction form
    16,187.76/22,341.96 = 15,449.04/x
  3. Step 3: Cross multiply
    16,187.76x = 22,341.96 × 15,449.04
  4. Step 4: Simplify right side
    16,187.76x = 345,161,833.72
  5. Step 5: Solve for x
    x = 345,161,833.72/16,187.76
  6. Step 6: Final answer
    x = 21,322.40

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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.