Home / 31,798.10-43,872.48-19,873.55

Finding the Fourth Proportional to 31,798.10, 43,872.48 and 19,873.55

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Solution

The fourth proportional to 31,798.10, 43,872.48 and 19,873.55 is: 27,419.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.10 : 43,872.48 = 19,873.55 : x
  2. Step 2: Convert to fraction form
    31,798.10/43,872.48 = 19,873.55/x
  3. Step 3: Cross multiply
    31,798.10x = 43,872.48 × 19,873.55
  4. Step 4: Simplify right side
    31,798.10x = 871,901,705.54
  5. Step 5: Solve for x
    x = 871,901,705.54/31,798.10
  6. Step 6: Final answer
    x = 27,419.94

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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.