Home / 21,409.52-29,542.73-11,849.59

Finding the Fourth Proportional to 21,409.52, 29,542.73 and 11,849.59

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Solution

The fourth proportional to 21,409.52, 29,542.73 and 11,849.59 is: 16,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.52 : 29,542.73 = 11,849.59 : x
  2. Step 2: Convert to fraction form
    21,409.52/29,542.73 = 11,849.59/x
  3. Step 3: Cross multiply
    21,409.52x = 29,542.73 × 11,849.59
  4. Step 4: Simplify right side
    21,409.52x = 350,069,215.66
  5. Step 5: Solve for x
    x = 350,069,215.66/21,409.52
  6. Step 6: Final answer
    x = 16,351.10

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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.