Home / 19,808.85-27,336.84-10,856.90

Finding the Fourth Proportional to 19,808.85, 27,336.84 and 10,856.90

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Solution

The fourth proportional to 19,808.85, 27,336.84 and 10,856.90 is: 14,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.85 : 27,336.84 = 10,856.90 : x
  2. Step 2: Convert to fraction form
    19,808.85/27,336.84 = 10,856.90/x
  3. Step 3: Cross multiply
    19,808.85x = 27,336.84 × 10,856.90
  4. Step 4: Simplify right side
    19,808.85x = 296,793,269.85
  5. Step 5: Solve for x
    x = 296,793,269.85/19,808.85
  6. Step 6: Final answer
    x = 14,982.87

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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.