Home / 30,219.46-41,708.82-19,310.62

Finding the Fourth Proportional to 30,219.46, 41,708.82 and 19,310.62

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Solution

The fourth proportional to 30,219.46, 41,708.82 and 19,310.62 is: 26,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.46 : 41,708.82 = 19,310.62 : x
  2. Step 2: Convert to fraction form
    30,219.46/41,708.82 = 19,310.62/x
  3. Step 3: Cross multiply
    30,219.46x = 41,708.82 × 19,310.62
  4. Step 4: Simplify right side
    30,219.46x = 805,423,173.67
  5. Step 5: Solve for x
    x = 805,423,173.67/30,219.46
  6. Step 6: Final answer
    x = 26,652.47

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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.