Home / 20,279.27-28,004.63-19,174.83

Finding the Fourth Proportional to 20,279.27, 28,004.63 and 19,174.83

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Solution

The fourth proportional to 20,279.27, 28,004.63 and 19,174.83 is: 26,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.27 : 28,004.63 = 19,174.83 : x
  2. Step 2: Convert to fraction form
    20,279.27/28,004.63 = 19,174.83/x
  3. Step 3: Cross multiply
    20,279.27x = 28,004.63 × 19,174.83
  4. Step 4: Simplify right side
    20,279.27x = 536,983,923.59
  5. Step 5: Solve for x
    x = 536,983,923.59/20,279.27
  6. Step 6: Final answer
    x = 26,479.46

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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.