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Finding the Fourth Proportional to 30,571.84, 45,853.84 and 11,839.06

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Solution

The fourth proportional to 30,571.84, 45,853.84 and 11,839.06 is: 17,757.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.84 : 45,853.84 = 11,839.06 : x
  2. Step 2: Convert to fraction form
    30,571.84/45,853.84 = 11,839.06/x
  3. Step 3: Cross multiply
    30,571.84x = 45,853.84 × 11,839.06
  4. Step 4: Simplify right side
    30,571.84x = 542,866,362.99
  5. Step 5: Solve for x
    x = 542,866,362.99/30,571.84
  6. Step 6: Final answer
    x = 17,757.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.