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Finding the Fourth Proportional to 30,797.40, 42,504.30 and 17,369.40

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Solution

The fourth proportional to 30,797.40, 42,504.30 and 17,369.40 is: 23,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,797.40 : 42,504.30 = 17,369.40 : x
  2. Step 2: Convert to fraction form
    30,797.40/42,504.30 = 17,369.40/x
  3. Step 3: Cross multiply
    30,797.40x = 42,504.30 × 17,369.40
  4. Step 4: Simplify right side
    30,797.40x = 738,274,188.42
  5. Step 5: Solve for x
    x = 738,274,188.42/30,797.40
  6. Step 6: Final answer
    x = 23,971.96

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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.