Home / 19,780.39-27,295.81-10,826.11

Finding the Fourth Proportional to 19,780.39, 27,295.81 and 10,826.11

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Solution

The fourth proportional to 19,780.39, 27,295.81 and 10,826.11 is: 14,939.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.39 : 27,295.81 = 10,826.11 : x
  2. Step 2: Convert to fraction form
    19,780.39/27,295.81 = 10,826.11/x
  3. Step 3: Cross multiply
    19,780.39x = 27,295.81 × 10,826.11
  4. Step 4: Simplify right side
    19,780.39x = 295,507,441.60
  5. Step 5: Solve for x
    x = 295,507,441.60/19,780.39
  6. Step 6: Final answer
    x = 14,939.41

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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.