Home / 21,894.44-30,208.77-13,393.47

Finding the Fourth Proportional to 21,894.44, 30,208.77 and 13,393.47

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Solution

The fourth proportional to 21,894.44, 30,208.77 and 13,393.47 is: 18,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.44 : 30,208.77 = 13,393.47 : x
  2. Step 2: Convert to fraction form
    21,894.44/30,208.77 = 13,393.47/x
  3. Step 3: Cross multiply
    21,894.44x = 30,208.77 × 13,393.47
  4. Step 4: Simplify right side
    21,894.44x = 404,600,254.73
  5. Step 5: Solve for x
    x = 404,600,254.73/21,894.44
  6. Step 6: Final answer
    x = 18,479.59

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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.