Home / 21,453.94-29,607.52-11,894.84

Finding the Fourth Proportional to 21,453.94, 29,607.52 and 11,894.84

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Solution

The fourth proportional to 21,453.94, 29,607.52 and 11,894.84 is: 16,415.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.94 : 29,607.52 = 11,894.84 : x
  2. Step 2: Convert to fraction form
    21,453.94/29,607.52 = 11,894.84/x
  3. Step 3: Cross multiply
    21,453.94x = 29,607.52 × 11,894.84
  4. Step 4: Simplify right side
    21,453.94x = 352,176,713.20
  5. Step 5: Solve for x
    x = 352,176,713.20/21,453.94
  6. Step 6: Final answer
    x = 16,415.48

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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.