Home / 22,108.39-30,500.55-13,607.95

Finding the Fourth Proportional to 22,108.39, 30,500.55 and 13,607.95

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Solution

The fourth proportional to 22,108.39, 30,500.55 and 13,607.95 is: 18,773.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,108.39 : 30,500.55 = 13,607.95 : x
  2. Step 2: Convert to fraction form
    22,108.39/30,500.55 = 13,607.95/x
  3. Step 3: Cross multiply
    22,108.39x = 30,500.55 × 13,607.95
  4. Step 4: Simplify right side
    22,108.39x = 415,049,959.37
  5. Step 5: Solve for x
    x = 415,049,959.37/22,108.39
  6. Step 6: Final answer
    x = 18,773.41

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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.