Home / 21,339.04-29,449.92-11,908.48

Finding the Fourth Proportional to 21,339.04, 29,449.92 and 11,908.48

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Solution

The fourth proportional to 21,339.04, 29,449.92 and 11,908.48 is: 16,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339.04 : 29,449.92 = 11,908.48 : x
  2. Step 2: Convert to fraction form
    21,339.04/29,449.92 = 11,908.48/x
  3. Step 3: Cross multiply
    21,339.04x = 29,449.92 × 11,908.48
  4. Step 4: Simplify right side
    21,339.04x = 350,703,783.32
  5. Step 5: Solve for x
    x = 350,703,783.32/21,339.04
  6. Step 6: Final answer
    x = 16,434.84

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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.