Home / 30.13-45.21-26.92

Finding the Fourth Proportional to 30.13, 45.21 and 26.92

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Solution

The fourth proportional to 30.13, 45.21 and 26.92 is: 40.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.13 : 45.21 = 26.92 : x
  2. Step 2: Convert to fraction form
    30.13/45.21 = 26.92/x
  3. Step 3: Cross multiply
    30.13x = 45.21 × 26.92
  4. Step 4: Simplify right side
    30.13x = 1,217.05
  5. Step 5: Solve for x
    x = 1,217.05/30.13
  6. Step 6: Final answer
    x = 40.39

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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.