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Finding the Fourth Proportional to 30,379.68, 41,900.22 and 26,980.11

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Solution

The fourth proportional to 30,379.68, 41,900.22 and 26,980.11 is: 37,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.68 : 41,900.22 = 26,980.11 : x
  2. Step 2: Convert to fraction form
    30,379.68/41,900.22 = 26,980.11/x
  3. Step 3: Cross multiply
    30,379.68x = 41,900.22 × 26,980.11
  4. Step 4: Simplify right side
    30,379.68x = 1,130,472,544.62
  5. Step 5: Solve for x
    x = 1,130,472,544.62/30,379.68
  6. Step 6: Final answer
    x = 37,211.47

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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.