Home / 22,185.13-30,615.54-12,113.66

Finding the Fourth Proportional to 22,185.13, 30,615.54 and 12,113.66

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Solution

The fourth proportional to 22,185.13, 30,615.54 and 12,113.66 is: 16,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,185.13 : 30,615.54 = 12,113.66 : x
  2. Step 2: Convert to fraction form
    22,185.13/30,615.54 = 12,113.66/x
  3. Step 3: Cross multiply
    22,185.13x = 30,615.54 × 12,113.66
  4. Step 4: Simplify right side
    22,185.13x = 370,866,089.20
  5. Step 5: Solve for x
    x = 370,866,089.20/22,185.13
  6. Step 6: Final answer
    x = 16,716.88

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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.