Home / 21,451.16-29,602.50-13,067.66

Finding the Fourth Proportional to 21,451.16, 29,602.50 and 13,067.66

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Solution

The fourth proportional to 21,451.16, 29,602.50 and 13,067.66 is: 18,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451.16 : 29,602.50 = 13,067.66 : x
  2. Step 2: Convert to fraction form
    21,451.16/29,602.50 = 13,067.66/x
  3. Step 3: Cross multiply
    21,451.16x = 29,602.50 × 13,067.66
  4. Step 4: Simplify right side
    21,451.16x = 386,835,405.15
  5. Step 5: Solve for x
    x = 386,835,405.15/21,451.16
  6. Step 6: Final answer
    x = 18,033.31

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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.