Home / 30,961.06-42,725.88-16,814

Finding the Fourth Proportional to 30,961.06, 42,725.88 and 16,814

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Solution

The fourth proportional to 30,961.06, 42,725.88 and 16,814 is: 23,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,961.06 : 42,725.88 = 16,814 : x
  2. Step 2: Convert to fraction form
    30,961.06/42,725.88 = 16,814/x
  3. Step 3: Cross multiply
    30,961.06x = 42,725.88 × 16,814
  4. Step 4: Simplify right side
    30,961.06x = 718,392,946.32
  5. Step 5: Solve for x
    x = 718,392,946.32/30,961.06
  6. Step 6: Final answer
    x = 23,203.11

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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.