Home / 22,145.21-30,543.11-14,188.18

Finding the Fourth Proportional to 22,145.21, 30,543.11 and 14,188.18

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Solution

The fourth proportional to 22,145.21, 30,543.11 and 14,188.18 is: 19,568.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.21 : 30,543.11 = 14,188.18 : x
  2. Step 2: Convert to fraction form
    22,145.21/30,543.11 = 14,188.18/x
  3. Step 3: Cross multiply
    22,145.21x = 30,543.11 × 14,188.18
  4. Step 4: Simplify right side
    22,145.21x = 433,351,142.44
  5. Step 5: Solve for x
    x = 433,351,142.44/22,145.21
  6. Step 6: Final answer
    x = 19,568.62

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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.