Home / 16,876.88-23,299.63-15,008.21

Finding the Fourth Proportional to 16,876.88, 23,299.63 and 15,008.21

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Solution

The fourth proportional to 16,876.88, 23,299.63 and 15,008.21 is: 20,719.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,876.88 : 23,299.63 = 15,008.21 : x
  2. Step 2: Convert to fraction form
    16,876.88/23,299.63 = 15,008.21/x
  3. Step 3: Cross multiply
    16,876.88x = 23,299.63 × 15,008.21
  4. Step 4: Simplify right side
    16,876.88x = 349,685,739.96
  5. Step 5: Solve for x
    x = 349,685,739.96/16,876.88
  6. Step 6: Final answer
    x = 20,719.81

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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.