Home / 21,336.66-29,444.61-11,905.23

Finding the Fourth Proportional to 21,336.66, 29,444.61 and 11,905.23

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Solution

The fourth proportional to 21,336.66, 29,444.61 and 11,905.23 is: 16,429.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.66 : 29,444.61 = 11,905.23 : x
  2. Step 2: Convert to fraction form
    21,336.66/29,444.61 = 11,905.23/x
  3. Step 3: Cross multiply
    21,336.66x = 29,444.61 × 11,905.23
  4. Step 4: Simplify right side
    21,336.66x = 350,544,854.31
  5. Step 5: Solve for x
    x = 350,544,854.31/21,336.66
  6. Step 6: Final answer
    x = 16,429.23

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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.