Home / 19,780.28-27,297.10-10,827.62

Finding the Fourth Proportional to 19,780.28, 27,297.10 and 10,827.62

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Solution

The fourth proportional to 19,780.28, 27,297.10 and 10,827.62 is: 14,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.28 : 27,297.10 = 10,827.62 : x
  2. Step 2: Convert to fraction form
    19,780.28/27,297.10 = 10,827.62/x
  3. Step 3: Cross multiply
    19,780.28x = 27,297.10 × 10,827.62
  4. Step 4: Simplify right side
    19,780.28x = 295,562,758.86
  5. Step 5: Solve for x
    x = 295,562,758.86/19,780.28
  6. Step 6: Final answer
    x = 14,942.30

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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.