Home / 16,679.36-22,921.18-15,908.40

Finding the Fourth Proportional to 16,679.36, 22,921.18 and 15,908.40

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Solution

The fourth proportional to 16,679.36, 22,921.18 and 15,908.40 is: 21,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.36 : 22,921.18 = 15,908.40 : x
  2. Step 2: Convert to fraction form
    16,679.36/22,921.18 = 15,908.40/x
  3. Step 3: Cross multiply
    16,679.36x = 22,921.18 × 15,908.40
  4. Step 4: Simplify right side
    16,679.36x = 364,639,299.91
  5. Step 5: Solve for x
    x = 364,639,299.91/16,679.36
  6. Step 6: Final answer
    x = 21,861.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.