Home / 19,856.94-27,402.62-10,905.03

Finding the Fourth Proportional to 19,856.94, 27,402.62 and 10,905.03

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Solution

The fourth proportional to 19,856.94, 27,402.62 and 10,905.03 is: 15,048.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.94 : 27,402.62 = 10,905.03 : x
  2. Step 2: Convert to fraction form
    19,856.94/27,402.62 = 10,905.03/x
  3. Step 3: Cross multiply
    19,856.94x = 27,402.62 × 10,905.03
  4. Step 4: Simplify right side
    19,856.94x = 298,826,338.65
  5. Step 5: Solve for x
    x = 298,826,338.65/19,856.94
  6. Step 6: Final answer
    x = 15,048.96

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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.