Home / 22,214.80-30,657.16-12,143.04

Finding the Fourth Proportional to 22,214.80, 30,657.16 and 12,143.04

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Solution

The fourth proportional to 22,214.80, 30,657.16 and 12,143.04 is: 16,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.80 : 30,657.16 = 12,143.04 : x
  2. Step 2: Convert to fraction form
    22,214.80/30,657.16 = 12,143.04/x
  3. Step 3: Cross multiply
    22,214.80x = 30,657.16 × 12,143.04
  4. Step 4: Simplify right side
    22,214.80x = 372,271,120.17
  5. Step 5: Solve for x
    x = 372,271,120.17/22,214.80
  6. Step 6: Final answer
    x = 16,757.80

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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.