Home / 22,214.09-30,655.37-12,142.53

Finding the Fourth Proportional to 22,214.09, 30,655.37 and 12,142.53

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Solution

The fourth proportional to 22,214.09, 30,655.37 and 12,142.53 is: 16,756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.09 : 30,655.37 = 12,142.53 : x
  2. Step 2: Convert to fraction form
    22,214.09/30,655.37 = 12,142.53/x
  3. Step 3: Cross multiply
    22,214.09x = 30,655.37 × 12,142.53
  4. Step 4: Simplify right side
    22,214.09x = 372,233,780.24
  5. Step 5: Solve for x
    x = 372,233,780.24/22,214.09
  6. Step 6: Final answer
    x = 16,756.65

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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.