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Finding the Fourth Proportional to 30,247.92, 45,371.70 and 11,779.92

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Solution

The fourth proportional to 30,247.92, 45,371.70 and 11,779.92 is: 17,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.92 : 45,371.70 = 11,779.92 : x
  2. Step 2: Convert to fraction form
    30,247.92/45,371.70 = 11,779.92/x
  3. Step 3: Cross multiply
    30,247.92x = 45,371.70 × 11,779.92
  4. Step 4: Simplify right side
    30,247.92x = 534,474,996.26
  5. Step 5: Solve for x
    x = 534,474,996.26/30,247.92
  6. Step 6: Final answer
    x = 17,669.81

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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.