Home / 20,699.75-31,042.44-19,371.15

Finding the Fourth Proportional to 20,699.75, 31,042.44 and 19,371.15

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Solution

The fourth proportional to 20,699.75, 31,042.44 and 19,371.15 is: 29,050.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.75 : 31,042.44 = 19,371.15 : x
  2. Step 2: Convert to fraction form
    20,699.75/31,042.44 = 19,371.15/x
  3. Step 3: Cross multiply
    20,699.75x = 31,042.44 × 19,371.15
  4. Step 4: Simplify right side
    20,699.75x = 601,327,761.61
  5. Step 5: Solve for x
    x = 601,327,761.61/20,699.75
  6. Step 6: Final answer
    x = 29,050.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.