Home / 19,790.30-27,310.85-10,838.18

Finding the Fourth Proportional to 19,790.30, 27,310.85 and 10,838.18

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Solution

The fourth proportional to 19,790.30, 27,310.85 and 10,838.18 is: 14,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.30 : 27,310.85 = 10,838.18 : x
  2. Step 2: Convert to fraction form
    19,790.30/27,310.85 = 10,838.18/x
  3. Step 3: Cross multiply
    19,790.30x = 27,310.85 × 10,838.18
  4. Step 4: Simplify right side
    19,790.30x = 295,999,855.69
  5. Step 5: Solve for x
    x = 295,999,855.69/19,790.30
  6. Step 6: Final answer
    x = 14,956.82

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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.