Home / 22,087.74-30,479.64-13,135.92

Finding the Fourth Proportional to 22,087.74, 30,479.64 and 13,135.92

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Solution

The fourth proportional to 22,087.74, 30,479.64 and 13,135.92 is: 18,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,087.74 : 30,479.64 = 13,135.92 : x
  2. Step 2: Convert to fraction form
    22,087.74/30,479.64 = 13,135.92/x
  3. Step 3: Cross multiply
    22,087.74x = 30,479.64 × 13,135.92
  4. Step 4: Simplify right side
    22,087.74x = 400,378,112.67
  5. Step 5: Solve for x
    x = 400,378,112.67/22,087.74
  6. Step 6: Final answer
    x = 18,126.71

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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.