Home / 21,208.92-29,274-13,246.32

Finding the Fourth Proportional to 21,208.92, 29,274 and 13,246.32

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Solution

The fourth proportional to 21,208.92, 29,274 and 13,246.32 is: 18,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208.92 : 29,274 = 13,246.32 : x
  2. Step 2: Convert to fraction form
    21,208.92/29,274 = 13,246.32/x
  3. Step 3: Cross multiply
    21,208.92x = 29,274 × 13,246.32
  4. Step 4: Simplify right side
    21,208.92x = 387,772,771.68
  5. Step 5: Solve for x
    x = 387,772,771.68/21,208.92
  6. Step 6: Final answer
    x = 18,283.48

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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.