Home / 28,419.66-42,629.90-23,148.59

Finding the Fourth Proportional to 28,419.66, 42,629.90 and 23,148.59

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Solution

The fourth proportional to 28,419.66, 42,629.90 and 23,148.59 is: 34,723.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419.66 : 42,629.90 = 23,148.59 : x
  2. Step 2: Convert to fraction form
    28,419.66/42,629.90 = 23,148.59/x
  3. Step 3: Cross multiply
    28,419.66x = 42,629.90 × 23,148.59
  4. Step 4: Simplify right side
    28,419.66x = 986,821,747.95
  5. Step 5: Solve for x
    x = 986,821,747.95/28,419.66
  6. Step 6: Final answer
    x = 34,723.21

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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.