Home / 22,121.13-30,527.15-12,185.13

Finding the Fourth Proportional to 22,121.13, 30,527.15 and 12,185.13

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Solution

The fourth proportional to 22,121.13, 30,527.15 and 12,185.13 is: 16,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.13 : 30,527.15 = 12,185.13 : x
  2. Step 2: Convert to fraction form
    22,121.13/30,527.15 = 12,185.13/x
  3. Step 3: Cross multiply
    22,121.13x = 30,527.15 × 12,185.13
  4. Step 4: Simplify right side
    22,121.13x = 371,977,169.11
  5. Step 5: Solve for x
    x = 371,977,169.11/22,121.13
  6. Step 6: Final answer
    x = 16,815.47

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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.