Home / 22,039.49-30,415.21-12,479.24

Finding the Fourth Proportional to 22,039.49, 30,415.21 and 12,479.24

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Solution

The fourth proportional to 22,039.49, 30,415.21 and 12,479.24 is: 17,221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,039.49 : 30,415.21 = 12,479.24 : x
  2. Step 2: Convert to fraction form
    22,039.49/30,415.21 = 12,479.24/x
  3. Step 3: Cross multiply
    22,039.49x = 30,415.21 × 12,479.24
  4. Step 4: Simplify right side
    22,039.49x = 379,558,750.08
  5. Step 5: Solve for x
    x = 379,558,750.08/22,039.49
  6. Step 6: Final answer
    x = 17,221.76

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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.