Home / 30,670.89-42,326.25-17,241.36

Finding the Fourth Proportional to 30,670.89, 42,326.25 and 17,241.36

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Solution

The fourth proportional to 30,670.89, 42,326.25 and 17,241.36 is: 23,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.89 : 42,326.25 = 17,241.36 : x
  2. Step 2: Convert to fraction form
    30,670.89/42,326.25 = 17,241.36/x
  3. Step 3: Cross multiply
    30,670.89x = 42,326.25 × 17,241.36
  4. Step 4: Simplify right side
    30,670.89x = 729,762,113.70
  5. Step 5: Solve for x
    x = 729,762,113.70/30,670.89
  6. Step 6: Final answer
    x = 23,793.31

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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.