Home / 16,939.70-23,369.34-10,221.58

Finding the Fourth Proportional to 16,939.70, 23,369.34 and 10,221.58

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Solution

The fourth proportional to 16,939.70, 23,369.34 and 10,221.58 is: 14,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.70 : 23,369.34 = 10,221.58 : x
  2. Step 2: Convert to fraction form
    16,939.70/23,369.34 = 10,221.58/x
  3. Step 3: Cross multiply
    16,939.70x = 23,369.34 × 10,221.58
  4. Step 4: Simplify right side
    16,939.70x = 238,871,578.36
  5. Step 5: Solve for x
    x = 238,871,578.36/16,939.70
  6. Step 6: Final answer
    x = 14,101.29

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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.