Home / 29,814.48-41,138.28-20,379.60

Finding the Fourth Proportional to 29,814.48, 41,138.28 and 20,379.60

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Solution

The fourth proportional to 29,814.48, 41,138.28 and 20,379.60 is: 28,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,814.48 : 41,138.28 = 20,379.60 : x
  2. Step 2: Convert to fraction form
    29,814.48/41,138.28 = 20,379.60/x
  3. Step 3: Cross multiply
    29,814.48x = 41,138.28 × 20,379.60
  4. Step 4: Simplify right side
    29,814.48x = 838,381,691.09
  5. Step 5: Solve for x
    x = 838,381,691.09/29,814.48
  6. Step 6: Final answer
    x = 28,119.95

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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.