Home / 30,062.66-45,104.73-13,421.21

Finding the Fourth Proportional to 30,062.66, 45,104.73 and 13,421.21

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Solution

The fourth proportional to 30,062.66, 45,104.73 and 13,421.21 is: 20,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,062.66 : 45,104.73 = 13,421.21 : x
  2. Step 2: Convert to fraction form
    30,062.66/45,104.73 = 13,421.21/x
  3. Step 3: Cross multiply
    30,062.66x = 45,104.73 × 13,421.21
  4. Step 4: Simplify right side
    30,062.66x = 605,359,986.22
  5. Step 5: Solve for x
    x = 605,359,986.22/30,062.66
  6. Step 6: Final answer
    x = 20,136.61

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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.