Home / 21,054.52-29,055.05-11,622.88

Finding the Fourth Proportional to 21,054.52, 29,055.05 and 11,622.88

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Solution

The fourth proportional to 21,054.52, 29,055.05 and 11,622.88 is: 16,039.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.52 : 29,055.05 = 11,622.88 : x
  2. Step 2: Convert to fraction form
    21,054.52/29,055.05 = 11,622.88/x
  3. Step 3: Cross multiply
    21,054.52x = 29,055.05 × 11,622.88
  4. Step 4: Simplify right side
    21,054.52x = 337,703,359.54
  5. Step 5: Solve for x
    x = 337,703,359.54/21,054.52
  6. Step 6: Final answer
    x = 16,039.47

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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.