Home / 30,721.46-42,392.34-17,292.48

Finding the Fourth Proportional to 30,721.46, 42,392.34 and 17,292.48

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Solution

The fourth proportional to 30,721.46, 42,392.34 and 17,292.48 is: 23,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,721.46 : 42,392.34 = 17,292.48 : x
  2. Step 2: Convert to fraction form
    30,721.46/42,392.34 = 17,292.48/x
  3. Step 3: Cross multiply
    30,721.46x = 42,392.34 × 17,292.48
  4. Step 4: Simplify right side
    30,721.46x = 733,068,691.60
  5. Step 5: Solve for x
    x = 733,068,691.60/30,721.46
  6. Step 6: Final answer
    x = 23,861.78

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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.