Home / 30,812.46-42,518.43-17,380.14

Finding the Fourth Proportional to 30,812.46, 42,518.43 and 17,380.14

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Solution

The fourth proportional to 30,812.46, 42,518.43 and 17,380.14 is: 23,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.46 : 42,518.43 = 17,380.14 : x
  2. Step 2: Convert to fraction form
    30,812.46/42,518.43 = 17,380.14/x
  3. Step 3: Cross multiply
    30,812.46x = 42,518.43 × 17,380.14
  4. Step 4: Simplify right side
    30,812.46x = 738,976,265.98
  5. Step 5: Solve for x
    x = 738,976,265.98/30,812.46
  6. Step 6: Final answer
    x = 23,983.03

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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.