Home / 30,825.38-42,539.04-17,399.49

Finding the Fourth Proportional to 30,825.38, 42,539.04 and 17,399.49

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Solution

The fourth proportional to 30,825.38, 42,539.04 and 17,399.49 is: 24,011.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,825.38 : 42,539.04 = 17,399.49 : x
  2. Step 2: Convert to fraction form
    30,825.38/42,539.04 = 17,399.49/x
  3. Step 3: Cross multiply
    30,825.38x = 42,539.04 × 17,399.49
  4. Step 4: Simplify right side
    30,825.38x = 740,157,601.09
  5. Step 5: Solve for x
    x = 740,157,601.09/30,825.38
  6. Step 6: Final answer
    x = 24,011.31

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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.