Home / 33,478.57-46,204.06-21,390.09

Finding the Fourth Proportional to 33,478.57, 46,204.06 and 21,390.09

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Solution

The fourth proportional to 33,478.57, 46,204.06 and 21,390.09 is: 29,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,478.57 : 46,204.06 = 21,390.09 : x
  2. Step 2: Convert to fraction form
    33,478.57/46,204.06 = 21,390.09/x
  3. Step 3: Cross multiply
    33,478.57x = 46,204.06 × 21,390.09
  4. Step 4: Simplify right side
    33,478.57x = 988,309,001.77
  5. Step 5: Solve for x
    x = 988,309,001.77/33,478.57
  6. Step 6: Final answer
    x = 29,520.65

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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.