Home / 30,760.26-42,429.47-19,409.73

Finding the Fourth Proportional to 30,760.26, 42,429.47 and 19,409.73

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Solution

The fourth proportional to 30,760.26, 42,429.47 and 19,409.73 is: 26,773.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,760.26 : 42,429.47 = 19,409.73 : x
  2. Step 2: Convert to fraction form
    30,760.26/42,429.47 = 19,409.73/x
  3. Step 3: Cross multiply
    30,760.26x = 42,429.47 × 19,409.73
  4. Step 4: Simplify right side
    30,760.26x = 823,544,409.76
  5. Step 5: Solve for x
    x = 823,544,409.76/30,760.26
  6. Step 6: Final answer
    x = 26,773.00

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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.