Home / 22,214.30-30,655.26-12,142.80

Finding the Fourth Proportional to 22,214.30, 30,655.26 and 12,142.80

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Solution

The fourth proportional to 22,214.30, 30,655.26 and 12,142.80 is: 16,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.30 : 30,655.26 = 12,142.80 : x
  2. Step 2: Convert to fraction form
    22,214.30/30,655.26 = 12,142.80/x
  3. Step 3: Cross multiply
    22,214.30x = 30,655.26 × 12,142.80
  4. Step 4: Simplify right side
    22,214.30x = 372,240,691.13
  5. Step 5: Solve for x
    x = 372,240,691.13/22,214.30
  6. Step 6: Final answer
    x = 16,756.81

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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.