Home / 31,193.70-43,052.16-19,868.05

Finding the Fourth Proportional to 31,193.70, 43,052.16 and 19,868.05

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Solution

The fourth proportional to 31,193.70, 43,052.16 and 19,868.05 is: 27,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,193.70 : 43,052.16 = 19,868.05 : x
  2. Step 2: Convert to fraction form
    31,193.70/43,052.16 = 19,868.05/x
  3. Step 3: Cross multiply
    31,193.70x = 43,052.16 × 19,868.05
  4. Step 4: Simplify right side
    31,193.70x = 855,362,467.49
  5. Step 5: Solve for x
    x = 855,362,467.49/31,193.70
  6. Step 6: Final answer
    x = 27,421.00

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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.