Home / 19,806.08-27,331.10-10,853.56

Finding the Fourth Proportional to 19,806.08, 27,331.10 and 10,853.56

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Solution

The fourth proportional to 19,806.08, 27,331.10 and 10,853.56 is: 14,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.08 : 27,331.10 = 10,853.56 : x
  2. Step 2: Convert to fraction form
    19,806.08/27,331.10 = 10,853.56/x
  3. Step 3: Cross multiply
    19,806.08x = 27,331.10 × 10,853.56
  4. Step 4: Simplify right side
    19,806.08x = 296,639,733.72
  5. Step 5: Solve for x
    x = 296,639,733.72/19,806.08
  6. Step 6: Final answer
    x = 14,977.21

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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.