Home / 36,129.30-49,856.40-19,995.72

Finding the Fourth Proportional to 36,129.30, 49,856.40 and 19,995.72

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Solution

The fourth proportional to 36,129.30, 49,856.40 and 19,995.72 is: 27,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.30 : 49,856.40 = 19,995.72 : x
  2. Step 2: Convert to fraction form
    36,129.30/49,856.40 = 19,995.72/x
  3. Step 3: Cross multiply
    36,129.30x = 49,856.40 × 19,995.72
  4. Step 4: Simplify right side
    36,129.30x = 996,914,614.61
  5. Step 5: Solve for x
    x = 996,914,614.61/36,129.30
  6. Step 6: Final answer
    x = 27,592.97

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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.