Home / 20,135.08-30,158.46-14,273.92

Finding the Fourth Proportional to 20,135.08, 30,158.46 and 14,273.92

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Solution

The fourth proportional to 20,135.08, 30,158.46 and 14,273.92 is: 21,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.08 : 30,158.46 = 14,273.92 : x
  2. Step 2: Convert to fraction form
    20,135.08/30,158.46 = 14,273.92/x
  3. Step 3: Cross multiply
    20,135.08x = 30,158.46 × 14,273.92
  4. Step 4: Simplify right side
    20,135.08x = 430,479,445.36
  5. Step 5: Solve for x
    x = 430,479,445.36/20,135.08
  6. Step 6: Final answer
    x = 21,379.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.