Home / 19,790.60-27,309.78-10,838.21

Finding the Fourth Proportional to 19,790.60, 27,309.78 and 10,838.21

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Solution

The fourth proportional to 19,790.60, 27,309.78 and 10,838.21 is: 14,956.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.60 : 27,309.78 = 10,838.21 : x
  2. Step 2: Convert to fraction form
    19,790.60/27,309.78 = 10,838.21/x
  3. Step 3: Cross multiply
    19,790.60x = 27,309.78 × 10,838.21
  4. Step 4: Simplify right side
    19,790.60x = 295,989,198.97
  5. Step 5: Solve for x
    x = 295,989,198.97/19,790.60
  6. Step 6: Final answer
    x = 14,956.05

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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.