Home / 29,730.27-41,040.87-20,812.77

Finding the Fourth Proportional to 29,730.27, 41,040.87 and 20,812.77

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Solution

The fourth proportional to 29,730.27, 41,040.87 and 20,812.77 is: 28,730.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,730.27 : 41,040.87 = 20,812.77 : x
  2. Step 2: Convert to fraction form
    29,730.27/41,040.87 = 20,812.77/x
  3. Step 3: Cross multiply
    29,730.27x = 41,040.87 × 20,812.77
  4. Step 4: Simplify right side
    29,730.27x = 854,174,187.91
  5. Step 5: Solve for x
    x = 854,174,187.91/29,730.27
  6. Step 6: Final answer
    x = 28,730.79

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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.