Home / 20,126.38-27,764.75-14,161.34

Finding the Fourth Proportional to 20,126.38, 27,764.75 and 14,161.34

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Solution

The fourth proportional to 20,126.38, 27,764.75 and 14,161.34 is: 19,535.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.38 : 27,764.75 = 14,161.34 : x
  2. Step 2: Convert to fraction form
    20,126.38/27,764.75 = 14,161.34/x
  3. Step 3: Cross multiply
    20,126.38x = 27,764.75 × 14,161.34
  4. Step 4: Simplify right side
    20,126.38x = 393,186,064.77
  5. Step 5: Solve for x
    x = 393,186,064.77/20,126.38
  6. Step 6: Final answer
    x = 19,535.86

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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.