Home / 31,798.08-43,872.48-19,873.56

Finding the Fourth Proportional to 31,798.08, 43,872.48 and 19,873.56

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Solution

The fourth proportional to 31,798.08, 43,872.48 and 19,873.56 is: 27,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.08 : 43,872.48 = 19,873.56 : x
  2. Step 2: Convert to fraction form
    31,798.08/43,872.48 = 19,873.56/x
  3. Step 3: Cross multiply
    31,798.08x = 43,872.48 × 19,873.56
  4. Step 4: Simplify right side
    31,798.08x = 871,902,363.63
  5. Step 5: Solve for x
    x = 871,902,363.63/31,798.08
  6. Step 6: Final answer
    x = 27,419.97

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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.