Home / 19,808.81-27,336.37-10,856.12

Finding the Fourth Proportional to 19,808.81, 27,336.37 and 10,856.12

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Solution

The fourth proportional to 19,808.81, 27,336.37 and 10,856.12 is: 14,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.81 : 27,336.37 = 10,856.12 : x
  2. Step 2: Convert to fraction form
    19,808.81/27,336.37 = 10,856.12/x
  3. Step 3: Cross multiply
    19,808.81x = 27,336.37 × 10,856.12
  4. Step 4: Simplify right side
    19,808.81x = 296,766,749.26
  5. Step 5: Solve for x
    x = 296,766,749.26/19,808.81
  6. Step 6: Final answer
    x = 14,981.56

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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.