Home / 30,757.88-42,442.84-17,331.52

Finding the Fourth Proportional to 30,757.88, 42,442.84 and 17,331.52

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Solution

The fourth proportional to 30,757.88, 42,442.84 and 17,331.52 is: 23,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,757.88 : 42,442.84 = 17,331.52 : x
  2. Step 2: Convert to fraction form
    30,757.88/42,442.84 = 17,331.52/x
  3. Step 3: Cross multiply
    30,757.88x = 42,442.84 × 17,331.52
  4. Step 4: Simplify right side
    30,757.88x = 735,598,827.96
  5. Step 5: Solve for x
    x = 735,598,827.96/30,757.88
  6. Step 6: Final answer
    x = 23,915.79

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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.